lftp(1) lftp(1)
NAME
lftp - Sophisticated file transfer program
SYNTAX
lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
lftp -f script_file
lftp -c commands
lftp --version
lftp --help
VERSION
This man page documents lftp version 4.8.1.
DESCRIPTION
lftp is a file transfer program that allows sophisticated FTP, HTTP and
other connections to other hosts. If site is specified then lftp will
connect to that site otherwise a connection has to be established with
the open command.
lftp can handle several file access methods - FTP, FTPS, HTTP, HTTPS,
HFTP, FISH, SFTP and file (HTTPS and FTPS are only available when lftp
is compiled with GNU TLS or OpenSSL library). You can specify the
method to use in `open URL' command, e.g. `open http://www.us.ker-
nel.org/pub/linux'. HFTP is ftp-over-http-proxy protocol. It can be
used automatically instead of FTP if ftp:proxy is set to
`http://proxy[:port]'. Fish is a protocol working over an ssh connec-
tion to a unix account. SFtp is a protocol implemented in SSH2 as SFTP
subsystem.
Besides FTP-like protocols, lftp has support for BitTorrent protocol as
`torrent' command. Seeding is also supported.
Every operation in lftp is reliable, that is any non-fatal error is
handled properly and the operation is repeated. So if downloading
breaks, it will be restarted from the point automatically. Even if FTP
server does not support the REST command, lftp will try to retrieve the
file from the very beginning until the file is transferred completely.
lftp has shell-like command syntax allowing you to launch several com-
mands in parallel in background (&). It is also possible to group com-
mands within () and execute them in background. All background jobs are
executed in the same single process. You can bring a foreground job to
background with ^Z (c-z) and back with command `wait' (or `fg' which is
alias to `wait'). To list running jobs, use command `jobs'. Some com-
mands allow redirecting their output (cat, ls, ...) to file or via pipe
to external command. Commands can be executed conditionally based on
termination status of previous command (&&, ||).
If you exit lftp before all jobs are not finished yet, lftp will move
itself to nohup mode in background. The same thing happens with a real
modem hangup or when you close an xterm.
lftp has built-in mirror which can download or update a whole directory
tree. There is also reverse mirror (mirror -R) which uploads or updates
a directory tree on server. Mirror can also synchronize directories
between two remote servers, using FXP if available.
There is command `at' to launch a job at specified time in current con-
text, command `queue' to queue commands for sequential execution for
current server, and much more.
On startup, lftp executes /etc/lftp.conf and then ~/.lftprc and
~/.lftp/rc (or ~/.config/lftp/rc if ~/.lftp does not exist). You can
place aliases and `set' commands there. Some people prefer to see full
protocol debug, use `debug' to turn the debug on. Use `debug 3' to see
only greeting messages and error messages.
lftp has a number of settable variables. You can use `set -a' to see
all variables and their values or `set -d' to see list of defaults.
Variable names can be abbreviated and prefix can be omitted unless the
rest becomes ambiguous.
If lftp was compiled with OpenSSL (configure --with-openssl) it
includes software developed by the OpenSSL Project for use in the
OpenSSL Toolkit. (http://www.openssl.org/)
Commands
! shell command
Launch shell or shell command.
!ls
To do a directory listing of the local host.
alias [name [value]]
Define or undefine alias name. If value is omitted, the alias is unde-
fined, else it takes the value value. If no argument is given the cur-
rent aliases are listed.
alias dir ls -lF
alias less zmore
at time [ -- command ]
Wait until the given time and execute given (optional) command. See
also at(1).
attach [PID]
Attach the terminal to specified backgrounded lftp process.
bookmark [subcommand]
The bookmark command controls bookmarks.
Site names can be used in the open command directly as-is or in any
command that accepts input URLs using the bm:site/path format.
cache [subcommand]
The cache command controls local memory cache. The following subcom-
mands are recognized:
cat files
cat outputs the remote file(s) to stdout. (See also more, zcat and
zmore)
cd rdir
Change current remote directory. The previous remote directory is
stored as `-'. You can do `cd -' to change the directory back. The
previous directory for each site is also stored on disk, so you can do
`open site; cd -' even after lftp restart.
chmod [OPTS] mode files...
Change permission mask on remote files. The mode can be an octal number
or a symbolic mode (see chmod(1)).
close [-a]
Close idle connections. By default only with the current server, use
-a to close all idle connections.
cls [OPTS] files...
`cls' tries to retrieve information about specified files or directo-
ries and outputs the information according to format options. The dif-
ference between `ls' and `cls' is that `ls' requests the server to for-
mat file listing, and `cls' formats it itself, after retrieving all the
needed information.
command cmd args...
execute given command ignoring aliases.
debug [OPTS] level|off
Switch debugging to level or turn it off. Options:
du [OPTS] path...
Summarize disk usage. Options:
echo [-n] string
Prints (echos) the given string to the display.
edit [OPTS] file
Retrieve remote file to a temporary location, run a local editor on it
and upload the file back if changed. Options:
eval [-f format ] args...
without -f it executes given arguments as a command. With -f, arguments
are transformed into a new command. The format can contain plain text
and placeholders $0...$9 and $@, corresponding to the arguments.
exit [bg] [top] [parent] [kill] [code]
exit will exit from lftp or move to background if there are active
jobs. If no job is active, code is passed to operating system as lftp's
termination status. If code is omitted, the exit code of last command
is used.
`exit bg' forces moving to background when cmd:move-background is
false. `exit top' makes top level `shell' (internal lftp command
executor) terminate. `exit parent' terminates the parent shell when
running a nested script. `exit kill' kills all numbered jobs before
exiting. The options can be combined, e.g. `at 08:00 -- exit top kill
&' kills all jobs and makes lftp exit at specified time.
fg
Alias for `wait'.
find [OPTS] directory...
List files in the directory (current directory by default) recursively.
This can help with servers lacking ls -R support. You can redirect out-
put of this command. Options:
ftpcopy
Obsolete. Use one of the following instead:
get ftp://... -o ftp://...
get -O ftp://... file1 file2...
put ftp://...
mput ftp://.../*
mget -O ftp://... ftp://.../*
or other combinations to get FXP transfer (directly between two FTP
servers). lftp would fallback to plain copy (via client) if FXP trans-
fer cannot be initiated or ftp:use-fxp is false.
get [-E] [-a] [-c] [-e] [-P N] [-O base] rfile [-o lfile] ...
Retrieve the remote file rfile and store it as the local file lfile.
If -o is omitted, the file is stored to local file named as base name
of rfile. You can get multiple files by specifying multiple instances
of rfile (and -o lfile). Does not expand wildcards, use mget for that.
Examples:
get README
get README -o debian.README
get README README.mirrors
get README -o debian.README README.mirrors -o debian.mirrors
get README -o ftp://some.host.org/debian.README
get README -o ftp://some.host.org/debian-dir/ (end slash is important)
get1 [OPTS] rfile
Transfer a single file. Options:
glob [OPTS] [command] patterns
Glob given patterns containing metacharacters and pass result to given
command or return appropriate exit code.
Examples:
glob echo *
glob --exist *.csv && echo "There are *.csv files"
help [cmd]
Print help for cmd or if no cmd was specified print a list of available
commands.
history [OPTS] [cnt]
View or manipulate the command history. Optional argument cnt speci-
fies the number of history lines to list, or "all" to list all entries.
Options:
jobs [OPTS] [job_no...]
List running jobs. If job_no is specified, only list a job with that
number. Options:
kill all|job_no
Delete specified job with job_no or all jobs. (For job_no see jobs)
lcd ldir
Change current local directory ldir. The previous local directory is
stored as `-'. You can do `lcd -' to change the directory back.
ln [-s] existing-file new-link
Make a hard/symbolic link to an existing file. Option -s selects cre-
ation of a symbolic link.
local command
Run specified command with local directory file:// session instead of
remote session. Examples:
local pwd
local ls
local mirror /dir1 /dir2
lpwd
Print current working directory on local machine.
ls params
List remote files. You can redirect output of this command to file or
via pipe to external command. By default, ls output is cached, to see
new listing use rels or cache flush.
mget [-c] [-d] [-a] [-E] [-e] [-P N] [-O base] files
Gets selected files with expanded wildcards.
mirror [OPTS] [source [target]]
Mirror specified source directory to the target directory.
By default the source is remote and the target is a local directory.
When using -R, the source directory is local and the target is remote.
If the target directory is omitted, base name of the source directory
is used. If both directories are omitted, current local and remote
directories are used.
The source and/or the target may be URLs pointing to directories.
If the target directory ends with a slash (except the root directory)
then base name of the source directory is appended.
RX is an extended regular expression, just like in egrep(1).
GP is a glob pattern, e.g. `*.zip'.
Include and exclude options can be specified multiple times. It means
that a file or directory would be mirrored if it matches an include and
does not match to excludes after the include, or does not match any-
thing and the first check is exclude. Directories are matched with a
slash appended.
Note that symbolic links are not created when uploading to remote
server, because FTP protocol cannot do it. To upload files the links
refer to, use `mirror -RL' command (treat symbolic links as files).
For options --newer-than and --older-than you can either specify a file
or time specification like that used by at(1) command, e.g.
`now-7days' or `week ago'. If you specify a file, then modification
time of that file will be used.
Verbosity level can be selected using --verbose=level option or by sev-
eral -v options, e.g. -vvv. Levels are:
0 - no output (default)
1 - print actions
2 - +print not deleted file names (when -e is not specified)
3 - +print directory names which are mirrored
--only-newer turns off file size comparison and uploads/downloads only
newer files even if size is different. By default older files are
transferred and replace newer ones.
--upload-older allows replacing newer remote files with older ones
(when the target side is remote). Some remote back-ends cannot preserve
timestamps so the default is to keep newer files.
Recursion mode can be one of `always', `never', `missing', `newer'.
With the option `newer' mirror compares timestamps of directories and
enters a directory only if it is older or missing on the target side.
Be aware that when a file changes the directory timestamp may stay the
same, so mirror won't process that directory.
The options --file and --directory may be used multiple times and even
mixed provided that base directories of the paths are the same.
You can mirror between two servers if you specify URLs instead of
directories. FXP is automatically used for transfers between FTP
servers, if possible.
Some FTP servers hide dot-files by default (e.g. .htaccess), and show
them only when LIST command is used with -a option. In such case try to
use `set ftp:list-options -a'.
The recursion modes `newer' and `missing' conflict with
--scan-all-first, --depth-first, --no-empty-dirs and setting mir-
ror:no-empty-dirs=true.
mkdir [-p] [-f] dir(s)
Make remote directories. If -p is used, make all components of paths.
The -f option makes mkdir quiet and suppresses messages.
module module [ args ]
Load given module using dlopen(3) function. If module name does not
contain a slash, it is searched in directories specified by module:path
variable. Arguments are passed to module_init function. See
README.modules for technical details.
more files
Same as `cat files | more'. if PAGER is set, it is used as filter.
(See also cat, zcat and zmore)
mput [-c] [-d] [-a] [-E] [-e] [-P N] [-O base] files
Upload files with wildcard expansion. By default it uses the base name
of local name as remote one. This can be changed by `-d' option.
mrm file(s)
Same as `glob rm'. Removes specified file(s) with wildcard expansion.
mmv [-O directory] file(s) directory
Move specified files to a target directory. The target directory can be
specified after -O option or as the last argument.
mv file1 file2
Rename file1 to file2. No wildcard exmapsion is performed. If you give
more than two arguments, or the last argument ends with a slash, then
mmv command is executed instead.
nlist [args]
List remote file names
open [OPTS] site
Select a server by host name, URL or bookmark. When an URL or bookmark
is given, automatically change the current working directory to the
directory of the URL. Options:
pget [OPTS] rfile [-o lfile]
Gets the specified file using several connections. This can speed up
transfer, but loads the net and server heavily impacting other users.
Use only if you really have to transfer the file ASAP. Options:
put [-E] [-a] [-c] [-e] [-P N] [-O base] lfile [-o rfile]
Upload lfile with remote name rfile. If -o omitted, the base name of
lfile is used as remote name. Does not expand wildcards, use mput for
that.
pwd [-p]
Print current remote URL. Use `-p' option to show password in the URL.
queue [-n num ] cmd
Add the given command to queue for sequential execution. Each site has
its own queue. `-n' adds the command before the given item in the
queue. Don't try to queue `cd' or `lcd' commands, it may confuse lftp.
Instead do the cd/lcd before `queue' command, and it will remember the
place in which the command is to be done. It is possible to queue up an
already running job by `queue wait <jobno>', but the job will continue
execution even if it is not the first in queue.
`queue stop' will stop the queue, it will not execute any new commands,
but already running jobs will continue to run. You can use `queue stop'
to create an empty stopped queue. `queue start' will resume queue exe-
cution. When you exit lftp, it will start all stopped queues automati-
cally.
`queue' with no arguments will either create a stopped queue or print
queue status.
queue --delete|-d [index or wildcard expression]
Delete one or more items from the queue. If no argument is given, the
last entry in the queue is deleted.
queue --move|-m <index or wildcard expression> [index]
Move the given items before the given queue index, or to the end if no
destination is given.
Examples:
> get file &
[1] get file
> queue wait 1
> queue get another_file
> cd a_directory
> queue get yet_another_file
quote cmd
For FTP - send the command uninterpreted. Use with caution - it can
lead to unknown remote state and thus will cause reconnect. You cannot
be sure that any change of remote state because of quoted command is
solid - it can be reset by reconnect at any time.
For HTTP - specific to HTTP action. Syntax: ``quote <command>
[<args>]''. Command may be ``set-cookie'' or ``post''.
open http://www.site.net
quote set-cookie "variable=value; othervar=othervalue"
set http:post-content-type application/x-www-form-urlencoded
quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file
For FISH - send the command uninterpreted. This can be used to execute
arbitrary commands on server. The command must not take input or print
### at new line beginning. If it does, the protocol will become out of
sync.
open fish://server
quote find -name \*.zip
reget rfile [-o lfile]
Same as `get -c'.
rels [args]
Same as `ls', but ignores the cache.
renlist [args]
Same as `nlist', but ignores the cache.
repeat [OPTS] [[-d] delay] [command]
Repeat specified command with a delay between iterations. Default
delay is one second, default command is empty.
Examples:
repeat at tomorrow -- mirror
repeat 1d mirror
reput lfile [-o rfile]
Same as `put -c'.
rm [-r] [-f] files
Remove remote files. Does not expand wildcards, use mrm for that. -r
is for recursive directory remove. Be careful, if something goes wrong
you can lose files. -f suppress error messages.
rmdir dir(s)
Remove remote directories.
scache [session]
List cached sessions or switch to specified session.
set [var [val]]
Set variable to given value. If the value is omitted, unset the vari-
able. Variable name has format ``name/closure'', where closure can
specify exact application of the setting. See below for details. If
set is called with no variable then only altered settings are listed.
It can be changed by options:
site site_cmd
Execute site command site_cmd and output the result. You can redirect
its output.
sleep interval
Sleep given time interval and exit. Interval is in seconds by default,
but can be suffixed with 'm', 'h', 'd' for minutes, hours and days
respectively. See also at.
slot [name]
Select specified slot or list all slots allocated. A slot is a connec-
tion to a server, somewhat like a virtual console. You can create mul-
tiple slots connected to different servers and switch between them. You
can also use slot:name as a pseudo-URL evaluating to that slot loca-
tion.
Default readline binding allows quick switching between slots named 0-9
using Meta-0 - Meta-9 keys (often you can use Alt instead of Meta).
source file
source -e command
Execute commands recorded in file file or returned by specified exter-
nal command.
source ~/.lftp/rc
source -e echo help
suspend
Stop lftp process. Note that transfers will be also stopped until you
continue the process with shell's fg or bg commands.
torrent [OPTS] torrent-files...
Start BitTorrent process for the given torrent-files, which can be a
local file, URL, magnet link or plain info_hash written in hex or
base32. Local wildcards are expanded. Existing files are first vali-
dated unless --force-valid option is given. Missing pieces are down-
loaded. Files are stored in specified directory or current working
directory by default. Seeding continues until ratio reaches tor-
rent:stop-on-ratio setting or time of torrent:seed-max-time runs out.
Options:
user user [pass]
user URL [pass]
Use specified info for remote login. If you specify an URL with user
name, the entered password will be cached so that future URL references
can use it.
version
Print lftp version.
wait [jobno]
wait all
Wait for specified job to terminate. If jobno is omitted, wait for last
backgrounded job.
`wait all' waits for all jobs to terminate.
zcat files
Same as cat, but filter each file through zcat. (See also cat, more and
zmore)
zmore files
Same as more, but filter each file through zcat. (See also cat, zcat
and more)
Settings
On startup, lftp executes ~/.lftprc and ~/.lftp/rc (or ~/.con-
fig/lftp/rc if ~/.lftp does not exist). You can place aliases and
`set' commands there. Some people prefer to see full protocol debug,
use `debug' to turn the debug on.
There is also a system-wide startup file in /etc/lftp.conf. It can be
in different directory, see FILES section.
lftp has the following settable variables (you can also use `set -a' to
see all variables and their values):
bmk:save-passwords (boolean)
save plain text passwords in ~/.local/share/lftp/bookmarks or
~/.lftp/bookmarks on `bookmark add' command. Off by default.
cache:cache-empty-listings (boolean)
When false, empty listings are not cached.
cache:enable (boolean)
When false, cache is disabled.
cache:expire (time interval)
Positive cache entries expire in this time interval.
cache:expire-negative (time interval)
Negative cache entries expire in this time interval.
cache:size (number)
Maximum cache size. When exceeded, oldest cache entries will be
removed from cache.
cmd:at-exit (string)
the commands in string are executed before lftp exits or moves
to background.
cmd:at-exit-bg (string)
the commands in string are executed before backgrounded lftp
exits.
cmd:at-exit-fg (string)
the commands in string are executed before foreground lftp
exits.
cmd:at-background (string)
the commands in string are executed before lftp moves to back-
ground.
cmd:at-terminate (string)
the commands in string are executed before lftp terminates
(either backgrounded or foreground).
cmd:at-finish (string)
the commands in string are executed once when all jobs are done.
cmd:at-queue-finish (string)
the commands in string are executed once when all jobs in a
queue are done.
cmd:cls-completion-default (string)
default cls options for displaying completion choices. For exam-
ple, to make completion listings show file sizes, set cmd:cls-
completion-default to `-s'.
cmd:cls-default (string)
default cls command options. They can be overridden by explic-
itly given options.
cmd:cls-exact-time (boolean)
when true, cls would try to get exact file modification time
even if it means more requests to the server.
cmd:csh-history (boolean)
enables csh-like history expansion.
cmd:default-protocol (string)
The value is used when `open' is used with just host name with-
out protocol. Default is `ftp'.
cmd:fail-exit (boolean)
if true, exit when a command fails and the following command is
unconditional (i.e. does not begin with || or &&). lftp exits
after the unconditional command is issued without executing it.
cmd:interactive (tri-boolean)
when true, lftp acts interactively, handles terminal signals and
outputs some extra messages. Default is auto and depends on
stdin being a terminal.
cmd:long-running (seconds)
time of command execution, which is considered as `long' and a
beep is done before next prompt. 0 means off.
cmd:ls-default (string)
default ls argument
cmd:move-background (boolean)
when false, lftp refuses to go to background when exiting. To
force it, use `exit bg'.
cmd:move-background-detach (boolean)
when true (default), lftp detaches itself from the control ter-
minal when moving to background, it is possible to attach back
using `attach' command; when false, lftp tricks the shell to
move lftp to background process group and continues to run, then
fg shell command brings lftp back to foreground unless it has
done all jobs and terminated.
cmd:prompt (string)
The prompt. lftp recognizes the following backslash-escaped spe-
cial characters that are decoded as follows:
\@ insert @ if the current remote site user is not default
\a an ASCII bell character (07)
\e an ASCII escape character (033)
\h the remote hostname you are connected to
\n newline
\s the name of the client (lftp)
\S current slot name
\u the username of the remote site user you are logged in as
\U the URL of the remote site (e.g.,
ftp://g437.ub.gu.se/home/james/src/lftp)
\v the version of lftp (e.g., 2.0.3)
\w the current working directory at the remote site
\W the base name of the current working directory at the
remote site
\l the current working directory at the local site
\L the base name of the current working directory at the
local site
\nnn the character corresponding to the octal number nnn
\\ a backslash
\? skips next character if previous substitution was empty.
\[ begin a sequence of non-printing characters, which could
be used to embed a terminal control sequence into the
prompt
\] end a sequence of non-printing characters
cmd:parallel (number)
Number of jobs run in parallel in non-interactive mode. For
example, this may be useful for scripts with multiple `get' com-
mands. Note that setting this to a value greater than 1 changes
conditional execution behaviour, basically makes it inconsis-
tent.
cmd:queue-parallel (number)
Number of jobs run in parallel in a queue.
cmd:remote-completion (boolean)
a boolean to control whether or not lftp uses remote completion.
When true, Tab key guesses if the word being completed should be
a remote file name. Meta-Tab does remote completion always. So
you can force remote completion with Meta-Tab when cmd:remote-
completion is false or when the guess is wrong.
cmd:save-cwd-history (boolean)
when true, lftp saves last CWD of each site to
~/.local/share/lftp/cwd_history or ~/.lftp/cwd_history, allowing
to do ``cd -'' after lftp restart. Default is true.
cmd:save-rl-history (boolean)
when true, lftp saves readline history to
~/.local/share/lftp/rl_history or ~/.lftp/rl_history on exit.
Default is true.
cmd:show-status (boolean)
when false, lftp does not show status line on terminal. Default
is true.
cmd:set-term-status (boolean)
when true, lftp updates terminal status if supported (e.g.
xterm). The closure for this setting is the terminal type from
TERM environment variable.
cmd:status-interval (timeinterval)
the time interval between status updates.
cmd:stifle-rl-history (number)
the number of lines to keep in readline history.
cmd:term-status (string)
the format string to use to display terminal status. The closure
for this setting is the terminal type from TERM environment
variable. Default uses ``tsl'' and ``fsl'' termcap values.
The following escapes are supported:
cmd:time-style (string)
This setting is the default value for cls --time-style option.
cmd:trace (boolean)
when true, lftp prints the commands it executes (like sh -x).
cmd:verify-host (boolean)
if true, lftp resolves host name immediately in `open' command.
It is also possible to skip the check for a single `open' com-
mand if `&' is given, or if ^Z is pressed during the check.
cmd:verify-path (boolean)
if true, lftp checks the path given in `cd' command. It is also
possible to skip the check for a single `cd' command if `&' is
given, or if ^Z is pressed during the check. Examples:
set cmd:verify-path/hftp://* false
cd directory &
cmd:verify-path-cached (boolean)
When false, `cd' to a directory known from cache as existent
will succeed immediately. Otherwise the verification will
depend on cmd:verify-path setting.
color:use-color (tri-boolean)
when true, cls command and completion output colored file list-
ings according to color:dir-colors setting. When set to auto,
colors are used when output is a terminal.
color:dir-colors (string)
file listing color description. By default the value of LS_COL-
ORS environment variable is used. See dircolors(1).
dns:SRV-query (boolean)
query for SRV records and use them before gethostbyname. The SRV
records are only used if port is not explicitly specified. See
RFC2052 for details.
dns:cache-enable (boolean)
enable DNS cache. If it is off, lftp resolves host name each
time it reconnects.
dns:cache-expire (time interval)
time to live for DNS cache entries. It has format <num-
ber><unit>+, e.g. 1d12h30m5s or just 36h. To disable expira-
tion, set it to `inf' or `never'.
dns:cache-size (number)
maximum number of DNS cache entries.
dns:fatal-timeout (time interval)
limit the time for DNS queries. If DNS server is unavailable too
long, lftp will fail to resolve a given host name. Set to
`never' to disable.
dns:order (list of protocol names)
sets the order of DNS queries. Default is ``inet6 inet'' which
means first look up address in inet6 family, then inet and use
them in that order. To disable inet6 (AAAA) lookup, set this
variable to ``inet''.
dns:use-fork (boolean)
if true, lftp will fork before resolving host address. Default
is true.
dns:max-retries (number)
If zero, there is no limit on the number of times lftp will try
to lookup an address. If > 0, lftp will try only this number of
times to look up an address of each address family in dns:order.
dns:name (string)
This setting can be used to substitute a host name alias with
another name or IP address. The host name alias is used as the
setting closure, the substituted name or IP address is in the
value. Multiple names or IP addresses can be separated by comma.
file:charset (string)
local character set. It is set from current locale initially.
file:use-lock (boolean)
when true, lftp uses advisory locking on local files when open-
ing them.
file:use-fallocate (boolean)
when true, lftp uses fallocate(2) or posix_fallocate(3) to pre-
allocate storage space and reduce file fragmentation in pget and
torrent commands.
fish:auto-confirm (boolean)
when true, lftp answers ``yes'' to all ssh questions, in partic-
ular to the question about a new host key. Otherwise it answers
``no''.
fish:charset (string)
the character set used by fish server in requests, replies and
file listings. Default is empty which means the same as local.
fish:connect-program (string)
the program to use for connecting to remote server. It should
support `-l' option for user name, `-p' for port number. Default
is `ssh -a -x'. You can set it to `rsh', for example. For pri-
vate key authentication add `-i' option with the key file.
fish:shell (string)
use specified shell on server side. Default is /bin/sh. On some
systems, /bin/sh exits when doing cd to a non-existent direc-
tory. lftp can handle that but it has to reconnect. Set it to
/bin/bash for such systems if bash is installed.
ftp:acct (string)
Send this string in ACCT command after login. The result is
ignored. The closure for this setting has format user@host.
ftp:anon-pass (string)
sets the password used for anonymous FTP access authentication.
Default is "lftp@".
ftp:anon-user (string)
sets the user name used for anonymous FTP access authentication.
Default is "anonymous".
ftp:auto-sync-mode (regex)
if first server message matches this regex, turn on sync mode
for that host.
ftp:catch-size (boolean)
when there is no support for SIZE command, try to catch file
size from the "150 Opening data connection" reply.
ftp:charset (string)
the character set used by FTP server in requests, replies and
file listings. Default is empty which means the same as local.
This setting is only used when the server does not support UTF8.
ftp:client (string)
the name of FTP client to send with CLNT command, if supported
by server. If it is empty, then no CLNT command will be sent.
ftp:compressed-re (regex)
files with matching name will be considered compressed and "MODE
Z" will not be used for them.
ftp:bind-data-socket (boolean)
bind data socket to the interface of control connection (in pas-
sive mode). Default is true, exception is the loopback inter-
face.
ftp:fix-pasv-address (boolean)
if true, lftp will try to correct address returned by server for
PASV command in case when server address is in public network
and PASV returns an address from a private network. In this case
lftp would substitute server address instead of the one returned
by PASV command, port number would not be changed. Default is
true.
ftp:fxp-passive-source (boolean)
if true, lftp will try to set up source FTP server in passive
mode first, otherwise destination one. If first attempt fails,
lftp tries to set them up the other way. If the other disposi-
tion fails too, lftp falls back to plain copy. See also ftp:use-
fxp.
ftp:home (string)
Initial directory. Default is empty string which means auto. Set
this to `/' if you don't like the look of %2F in FTP URLs. The
closure for this setting has format user@host.
ftp:ignore-pasv-address (boolean)
If true, lftp uses control connection address instead of the one
returned in PASV reply for data connection. This can be useful
for broken NATs. Default is false.
ftp:list-empty-ok (boolean)
if set to false, empty lists from LIST command will be treated
as incorrect, and another method (NLST) will be used.
ftp:list-options (string)
sets options which are always appended to LIST command. It can
be useful to set this to `-a' if server does not show dot (hid-
den) files by default. Default is empty.
ftp:mode-z-level (number)
compression level (0-9) for uploading with MODE Z.
ftp:nop-interval (seconds)
delay between NOOP commands when downloading tail of a file.
This is useful for FTP servers which send "Transfer complete"
message before flushing data transfer. In such cases NOOP com-
mands can prevent connection timeout.
ftp:passive-mode (boolean)
sets passive FTP mode. This can be useful if you are behind a
firewall or a dumb masquerading router. In passive mode lftp
uses PASV command, not the PORT command which is used in active
mode. In passive mode lftp itself makes the data connection to
the server; in active mode the server connects to lftp for data
transfer. Passive mode is the default.
ftp:port-ipv4 (ipv4 address)
specifies an IPv4 address to send with PORT command. Default is
empty which means to send the address of local end of control
connection.
ftp:port-range (from-to)
allowed port range for the local side of the data connection.
Format is min-max, or `full' or `any' to indicate any port.
Default is `full'.
ftp:prefer-epsv (boolean)
use EPSV as preferred passive mode. Default is `false'.
ftp:proxy (URL)
specifies FTP proxy to use. To disable proxy set this to empty
string. Note that it is a FTP proxy which uses FTP protocol, not
FTP over HTTP. Default value is taken from environment variable
ftp_proxy if it starts with ``ftp://''. If your FTP proxy
requires authentication, specify user name and password in the
URL. If ftp:proxy starts with http:// then hftp protocol (FTP
over HTTP proxy) is used instead of FTP automatically.
ftp:proxy-auth-type (string)
When set to ``joined'', lftp sends ``user@proxy_user@ftp.exam-
ple.org'' as user name to proxy, and ``password@proxy_password''
as password.
When set to ``joined-acct'', lftp sends ``user@ftp.example.org
proxy_user'' (with space) as user name to proxy. The site pass-
word is sent as usual and the proxy password is expected in the
following ACCT command.
When set to ``open'', lftp first sends proxy user and proxy
password and then ``OPEN ftp.example.org'' followed by ``USER
user''. The site password is then sent as usual.
When set to ``user'' (default), lftp first sends proxy user and
proxy password and then ``user@ftp.example.org'' as user name.
The site password is then sent as usual.
When set to ``proxy-user@host'', lftp first sends ``USER
proxy_user@ftp.example.org'', then proxy password. The site user
and password are then sent as usual.
ftp:rest-list (boolean)
allow usage of REST command before LIST command. This might be
useful for large directories, but some FTP servers silently
ignore REST before LIST.
ftp:rest-stor (boolean)
if false, lftp will not try to use REST before STOR. This can be
useful for some buggy servers which corrupt (fill with zeros)
the file if REST followed by STOR is used.
ftp:retry-530 (regex)
Retry on server reply 530 for PASS command if text matches this
regular expression. This setting should be useful to distin-
guish between overloaded server (temporary condition) and incor-
rect password (permanent condition).
ftp:retry-530-anonymous (regex)
Additional regular expression for anonymous login, like
ftp:retry-530.
ftp:site-group (string)
Send this string in SITE GROUP command after login. The result
is ignored. The closure for this setting has format user@host.
ftp:skey-allow (boolean)
allow sending skey/opie reply if server appears to support it.
On by default.
ftp:skey-force (boolean)
do not send plain text password over the network, use skey/opie
instead. If skey/opie is not available, assume failed login. Off
by default.
ftp:ssl-allow (boolean)
if true, try to negotiate SSL connection with FTP server for
non-anonymous access. Default is true. This and other SSL set-
tings are only available if lftp was compiled with an ssl/tls
library.
ftp:ssl-auth (string)
the argument for AUTH command, can be one of SSL, TLS, TLS-P,
TLS-C. See RFC4217 for explanations. By default TLS or SSL will
be used, depending on FEAT reply.
ftp:ssl-data-use-keys (boolean)
if true, lftp loads ssl:key-file for protected data connection
too. When false, it does not, and the server can match data and
control connections by session ID. Default is true.
ftp:ssl-force (boolean)
if true, refuse to send password in clear when server does not
support SSL. Default is false.
ftp:ssl-protect-data (boolean)
if true, request SSL connection for data transfers. This pro-
vides privacy and transmission error correction. Was cpu-inten-
sive on old CPUs. Default is true.
ftp:ssl-protect-fxp (boolean)
if true, request SSL connection for data transfer between two
FTP servers in FXP mode. CPSV or SSCN command will be used in
that case. If SSL connection fails for some reason, lftp would
try unprotected FXP transfer unless ftp:ssl-force is set for any
of the two servers. Default is true.
ftp:ssl-protect-list (boolean)
if true, request SSL connection for file list transfers. Default
is true.
ftp:ssl-use-ccc (boolean)
if true, lftp would issue CCC command after logon, thus disable
ssl protection layer on control connection.
ftp:stat-interval (time interval)
interval between STAT commands. Default is 1 second.
ftp:strict-multiline (boolean)
when true, lftp strictly checks for multiline reply format
(expects it to end with the same code as it started with). When
false, this check is relaxed.
ftp:sync-mode (boolean)
if true, lftp will send one command at a time and wait for
response. This might be useful if you are using a buggy FTP
server or router. When it is off, lftp sends a pack of commands
and waits for responses - it speeds up operation when round trip
time is significant. Unfortunately it does not work with all
FTP servers and some routers have troubles with it, so it is on
by default.
ftp:timezone (string)
Assume this timezone for time in listings returned by LIST com-
mand. This setting can be GMT offset [+|-]HH[:MM[:SS]] or any
valid TZ value (e.g. Europe/Moscow or
MSK-3MSD,M3.5.0,M10.5.0/3). The default is GMT. Set it to an
empty value to assume local timezone specified by environment
variable TZ.
ftp:too-many-re (regexp)
Decrease the dynamic connection limit when 421 reply line
matches this regular expression.
ftp:trust-feat (string)
When true, assume that FEAT returned data are correct and don't
use common protocol extensions like SIZE, MDTM, REST if they are
not listed. Default is false.
ftp:use-abor (boolean)
if false, lftp does not send ABOR command but closes data con-
nection immediately.
ftp:use-allo (boolean)
when true, lftp sends ALLO command before uploading a file.
ftp:use-feat (boolean)
when true (default), lftp uses FEAT command to determine
extended features of ftp server.
ftp:use-fxp (boolean)
if true, lftp will try to set up direct connection between two
ftp servers.
ftp:use-hftp (boolean)
when ftp:proxy points to an http proxy, this setting selects
hftp method (GET, HEAD) when true, and CONNECT method when
false. Default is true.
ftp:use-ip-tos (boolean)
when true, lftp uses IPTOS_LOWDELAY for control connection and
IPTOS_THROUGHPUT for data connections.
ftp:lang (boolean)
the language selected with LANG command, if supported as indi-
cated by FEAT response. Default is empty which means server
default.
ftp:use-mdtm (boolean)
when true (default), lftp uses MDTM command to determine file
modification time.
ftp:use-mdtm-overloaded (boolean)
when true, lftp uses two argument MDTM command to set file modi-
fication time on uploaded files. Default is false.
ftp:use-mlsd (boolean)
when true, lftp will use MLSD command for directory listing if
supported by the server.
ftp:use-mode-z (boolean)
when true, lftp will use "MODE Z" if supported by the server to
perform compressed transfers.
ftp:use-pret (tri-boolean)
When set to auto, usage of PRET command depends on FEAT server
reply. Otherwise this setting tells whether to use it or not.
PRET command informs the server about the file to be transferred
before PORT or PASV commands, so that the server can adjust the
data connection parameters.
ftp:use-site-idle (boolean)
when true, lftp sends `SITE IDLE' command with net:idle argu-
ment. Default is false.
ftp:use-site-utime (boolean)
when true, lftp sends 5-argument `SITE UTIME' command to set
file modification time on uploaded files. Default is true.
ftp:use-site-utime2 (boolean)
when true, lftp sends 2-argument `SITE UTIME' command to set
file modification time on uploaded files. Default is true. If
5-argument `SITE UTIME' is also enabled, 2-argument command is
tried first.
ftp:use-size (boolean)
when true (default), lftp uses SIZE command to determine file
size.
ftp:use-stat (boolean)
if true, lftp sends STAT command in FXP mode transfer to know
how much data has been transferred. See also ftp:stat-interval.
Default is true.
ftp:use-stat-for-list (boolean)
when true, lftp uses STAT instead of LIST command. By default
`.' is used as STAT argument. Using STAT, lftp avoids creating
data connection for directory listing. Some servers require spe-
cial options for STAT, use ftp:list-options to specify them
(e.g. -la).
ftp:use-telnet-iac (boolean)
when true (default), lftp uses TELNET IAC command and follows
TELNET protocol as specified in RFC959. When false, it does not
follow TELNET protocol and thus does not double 255 (0xFF, 0377)
character and does not prefix ABOR and STAT commands with TELNET
IP+SYNCH signal.
ftp:use-tvfs (tri-boolean)
When set to auto, usage of TVFS feature depends on FEAT server
reply. Otherwise this setting tells whether to use it or not. In
short, if a server supports TVFS feature then it uses unix-like
paths.
ftp:use-utf8 (boolean)
if true, lftp sends `OPTS UTF8 ON' to the server to activate
UTF-8 encoding (if supported). Disable it if the file names have
a different encoding and the server has a trouble with it.
ftp:use-quit (boolean)
if true, lftp sends QUIT before disconnecting from ftp server.
Default is true.
ftp:verify-address (boolean)
verify that data connection comes from the network address of
control connection peer. This can possibly prevent data connec-
tion spoofing which can lead to data corruption. Unfortunately,
this can fail for certain ftp servers with several network
interfaces, when they do not set outgoing address on data
socket, so it is disabled by default.
ftp:verify-port (boolean)
verify that data connection has port 20 (ftp-data) on its remote
end. This can possibly prevent data connection spoofing by
users of remote host. Unfortunately, too many windows and even
unix ftp servers forget to set proper port on data connection,
thus this check is off by default.
ftp:web-mode (boolean)
disconnect after closing data connection. This can be useful for
totally broken ftp servers. Default is false.
ftps:initial-prot (string)
specifies initial PROT setting for FTPS connections. Should be
one of: C, S, E, P, or empty. Default is empty which means
unknown, so that lftp will use PROT command unconditionally. If
PROT command turns out to be unsupported, then Clear mode would
be assumed.
hftp:cache (boolean)
allow server/proxy side caching for ftp-over-http protocol.
hftp:cache-control (string)
specify corresponding HTTP request header.
hftp:decode (boolean)
when true, lftp automatically decodes the entity in hftp proto-
col when Content-Encoding header value matches deflate, gzip,
compress, x-gzip or x-compress.
hftp:proxy (URL)
specifies HTTP proxy for FTP-over-HTTP protocol (hftp). The pro-
tocol hftp cannot work without a HTTP proxy, obviously. Default
value is taken from environment variable ftp_proxy if it starts
with ``http://'', otherwise from environment variable
http_proxy. If your FTP proxy requires authentication, specify
user name and password in the URL.
hftp:use-allprop (boolean)
if true, lftp will send `<allprop/>' request body in `PROPFIND'
requests, otherwise it will send an empty request body.
hftp:use-authorization (boolean)
if set to off, lftp will send password as part of URL to the
proxy. This may be required for some proxies (e.g. M-soft).
Default is on, and lftp will send password as part of Authoriza-
tion header.
hftp:use-head (boolean)
if set to off, lftp will try to use `GET' instead of `HEAD' for
hftp protocol. While this is slower, it may allow lftp to work
with some proxies which don't understand or mishandle ``HEAD
ftp://'' requests.
hftp:use-mkcol (boolean)
if set to off, lftp will try to use `PUT' instead of `MKCOL' to
create directories with hftp protocol. Default is off.
hftp:use-propfind (boolean)
if set to off, lftp will not try to use `PROPFIND' to get direc-
tory contents with hftp protocol and use `GET' instead. Default
is off. When enabled, lftp will also use PROPPATCH to set file
modification time after uploading.
hftp:use-range (boolean)
when true, lftp will use Range header for transfer restart.
hftp:use-type (boolean)
If set to off, lftp won't try to append `;type=' to URLs passed
to proxy. Some broken proxies don't handle it correctly.
Default is on.
http:accept, http:accept-charset, http:accept-encoding, http:accept-
language (string)
specify corresponding HTTP request headers.
http:authorization (string)
the authorization to use by default, when no user is specified.
The format is ``user:password''. Default is empty which means no
authorization.
http:cache (boolean)
allow server/proxy side caching.
http:cache-control (string)
specify corresponding HTTP request header.
http:cookie (string)
send this cookie to server. A closure is useful here:
set cookie/www.somehost.com "param=value"
http:decode (boolean)
when true, lftp automatically decodes the entity when Content-
Encoding header value matches deflate, gzip, compress, x-gzip or
x-compress.
http:post-content-type (string)
specifies value of Content-Type HTTP request header for POST
method. Default is ``application/x-www-form-urlencoded''.
http:proxy (URL)
specifies HTTP proxy. It is used when lftp works over HTTP pro-
tocol. Default value is taken from environment variable
http_proxy. If your proxy requires authentication, specify user
name and password in the URL.
http:put-method (PUT or POST)
specifies which HTTP method to use on put.
http:put-content-type (string)
specifies value of Content-Type HTTP request header for PUT
method.
http:referer (string)
specifies value for Referer HTTP request header. Single dot `.'
expands to current directory URL. Default is `.'. Set to empty
string to disable Referer header.
http:set-cookies (boolean)
if true, lftp modifies http:cookie variables when Set-Cookie
header is received.
http:use-allprop (boolean)
if true, lftp will send `<allprop/>' request body in `PROPFIND'
requests, otherwise it will send an empty request body.
http:use-mkcol (boolean)
if set to off, lftp will try to use `PUT' instead of `MKCOL' to
create directories with HTTP protocol. Default is on.
http:use-propfind (boolean)
if set to off, lftp will not try to use `PROPFIND' to get direc-
tory contents with HTTP protocol and use `GET' instead. Default
is off. When enabled, lftp will also use PROPPATCH to set `Last-
Modified' property after a file upload.
http:use-range (boolean)
when true, lftp will use Range header for transfer restart.
http:user-agent (string)
the string lftp sends in User-Agent header of HTTP request.
https:proxy (string)
specifies https proxy. Default value is taken from environment
variable https_proxy.
log:enabled (boolean)
when true, the log messages are output. The closure for this and
other `log:' variables is either `debug' for debug messages or
`xfer' for transfer logging.
log:file (string)
the target output file for logging. When empty, stderr is used.
log:level (number)
the log verbosity level. Currently it's only defined for `debug'
closure.
log:max-size (number)
maximum size of the log file. When the size is reached, the file
is renamed and started anew.
log:prefix-error (string)
log:prefix-note (string)
log:prefix-recv (string)
log:prefix-send (string)
the prefixes for corresponding types of debug messages.
log:show-ctx (boolean)
log:show-pid (boolean)
log:show-time (boolean)
select additional information in the log messages.
mirror:dereference (boolean)
when true, mirror will dereference symbolic links by default.
You can override it by --no-dereference option. Default if
false.
mirror:exclude-regex (regex)
specifies default exclusion pattern. You can override it by
--include option.
mirror:include-regex (regex)
specifies default inclusion pattern. It is used just after mir-
ror:exclude-regex is applied. It is never used if mir-
ror:exclude-regex is empty.
mirror:no-empty-dirs (boolean)
when true, mirror doesn't create empty directories (like
--no-empty-dirs option).
mirror:sort-by (string)
specifies order of file transfers. Valid values are: name, name-
desc, size, size-desc, date, date-desc. When the value is name
or name-desc, then mirror:order setting also affects the order
or transfers.
mirror:order (list of patterns)
specifies order of file transfers when sorting by name. E.g.
setting this to "*.sfv *.sum" makes mirror to transfer files
matching *.sfv first, then ones matching *.sum and then all
other files. To process directories after other files, add "*/"
to the end of pattern list.
mirror:overwrite (boolean)
when true, mirror will overwrite plain files instead of removing
and re-creating them.
mirror:parallel-directories (boolean)
if true, mirror will start processing of several directories in
parallel when it is in parallel mode. Otherwise, it will trans-
fer files from a single directory before moving to other direc-
tories.
mirror:parallel-transfer-count (number)
specifies number of parallel transfers mirror is allowed to
start. You can override it with --parallel option. A closure
can be matched against source or target host names, the minimum
number greater than 0 is used.
mirror:require-source (boolean)
When true, mirror requires a source directory to be specified
explicitly, otherwise it is supposed to be the current direc-
tory.
mirror:set-permissions (boolean)
When set to off, mirror won't try to copy file and directory
permissions. You can override it by --perms option. Default is
on.
mirror:skip-noaccess (boolean)
when true, mirror does not try to download files which are obvi-
ously inaccessible by the permission mask. Default is false.
mirror:use-pget-n (number)
specifies -n option for pget command used to transfer every sin-
gle file under mirror. A closure can be matched against source
or target host names, the minimum number greater than 0 is used.
When the value is less than 2, pget is not used.
module:path (string)
colon separated list of directories to look for modules. Can be
initialized by environment variable LFTP_MODULE_PATH. Default is
`PKGLIBDIR/VERSION:PKGLIBDIR'.
net:connection-limit (number)
maximum number of concurrent connections to the same site. 0
means unlimited.
net:connection-limit-timer (time interval)
increase the dynamic connection limit after this time interval.
net:connection-takeover (boolean)
if true, foreground connections have priority over background
ones and can interrupt background transfers to complete a fore-
ground operation.
net:idle (time interval)
disconnect from server after this idle time. Default is 3 min-
utes.
net:limit-rate (bytes per second)
limit transfer rate on data connection. 0 means unlimited. You
can specify two numbers separated by colon to limit download and
upload rate separately. Suffixes are supported, e.g. 100K means
102400.
net:limit-max (bytes)
limit accumulating of unused limit-rate. 0 means twice of limit-
rate.
net:limit-total-rate (bytes per second)
limit transfer rate of all connections in sum. 0 means unlim-
ited. You can specify two numbers separated by colon to limit
download and upload rate separately. Note that sockets have
receive buffers on them, this can lead to network link load
higher than this rate limit just after transfer beginning. You
can try to set net:socket-buffer to relatively small value to
avoid this.
If you specify a closure, then rate limitation will be applied to sum
of connections to a single matching host.
net:limit-total-max (bytes)
limit accumulating of unused limit-total-rate. 0 means twice of
limit-total-rate.
net:max-retries (number)
the maximum number of sequential tries of an operation without
success. 0 means unlimited. 1 means no retries.
net:no-proxy (string)
contains comma separated list of domains for which proxy should
not be used. Default is taken from environment variable
no_proxy.
net:persist-retries (number)
ignore this number of hard errors. Useful to login to buggy FTP
servers which reply 5xx when there is too many users.
net:reconnect-interval-base (seconds)
sets the base minimal time between reconnects. Actual interval
depends on net:reconnect-interval-multiplier and number of
attempts to perform an operation.
net:reconnect-interval-max (seconds)
sets maximum reconnect interval. When current interval after
multiplication by net:reconnect-interval-multiplier reaches this
value (or exceeds it), it is reset back to net:reconnect-inter-
val-base.
net:reconnect-interval-multiplier (real number)
sets multiplier by which base interval is multiplied each time
new attempt to perform an operation fails. When the interval
reaches maximum, it is reset to base value. See net:reconnect-
interval-base and net:reconnect-interval-max.
net:socket-bind-ipv4 (ipv4 address)
bind all IPv4 sockets to specified address. This can be useful
to select a specific network interface to use. Default is empty
which means not to bind IPv4 sockets, operating system will
choose an address automatically using routing table.
net:socket-bind-ipv6 (ipv6 address)
the same for IPv6 sockets.
net:socket-buffer (bytes)
use given size for SO_SNDBUF and SO_RCVBUF socket options. 0
means system default.
net:socket-maxseg (bytes)
use given size for TCP_MAXSEG socket option. Not all operating
systems support this option, but Linux does.
net:timeout (time interval)
sets the network protocol timeout.
pget:default-n (number)
default number of chunks to split the file to in pget.
pget:min-chunk-size (number)
minimal chunk size to split the file to.
pget:save-status (time interval)
save pget transfer status this often. Set to `never' to disable
saving of the status file. The status is saved to a file with
suffix .lftp-pget-status.
sftp:auto-confirm (boolean)
when true, lftp answers ``yes'' to all ssh questions, in partic-
ular to the question about a new host key. Otherwise it answers
``no''.
sftp:charset (string)
the character set used by SFTP server in file names and file
listings. Default is empty which means the same as local. This
setting is only used for SFTP protocol version prior to 4. Ver-
sion 4 and later always use UTF-8.
sftp:connect-program (string)
the program to use for connecting to remote server. It should
support `-l' option for user name, `-p' for port number. Default
is `ssh -a -x'. For private key authentication add `-i' option
with the key file.
sftp:max-packets-in-flight (number)
The maximum number of unreplied packets in flight. If round trip
time is significant, you should increase this and size-
read/size-write. Default is 16.
sftp:protocol-version (number)
The protocol number to negotiate. Default is 6. The actual pro-
tocol version used depends on the server.
sftp:server-program (string)
The server program implementing SFTP protocol. If it does not
contain a slash `/', it is considered a ssh2 subsystem and -s
option is used when starting connect-program. Default is
`sftp'. You can use rsh as transport level protocol like this:
set sftp:connect-program rsh
set sftp:server-program /usr/libexec/openssh/sftp-server
Similarly you can run SFTP over SSH1.
sftp:size-read (number)
Block size for reading. Default is 0x8000.
sftp:size-write (number)
Block size for writing. Default is 0x8000.
ssl:ca-file (path to file)
use specified file as Certificate Authority certificate.
ssl:ca-path (path to directory)
use specified directory as Certificate Authority certificate
repository (OpenSSL only).
ssl:check-hostname (boolean)
when true, lftp checks if the host name used to connect to the
server corresponds to the host name in its certificate.
ssl:crl-file (path to file)
use specified file as Certificate Revocation List certificate.
ssl:crl-path (path to directory)
use specified directory as Certificate Revocation List certifi-
cate repository (OpenSSL only).
ssl:key-file (path to file)
use specified file as your private key. This setting is only
used for ftps and https protocols. For sftp and fish protocols
use sftp:connect-program and fish:connect-program respectively
(add `-i' option to ssh).
ssl:cert-file (path to file)
use specified file as your certificate.
ssl:use-sni (boolean)
when true, use Server Name Indication (SNI) TLS extension.
ssl:verify-certificate (boolean)
if set to yes, then verify server's certificate to be signed by
a known Certificate Authority and not be on Certificate Revoca-
tion List. You can specify either host name or certificate fin-
gerprint in the closure.
ssl:priority (string)
free form priority string for GnuTLS. If built with OpenSSL the
understood values are + or - followed by SSL3.0, TLS1.0, TLS1.1
or TLS1.2, separated by :. Example:
set ssl:priority "NORMAL:-SSL3.0:-TLS1.0:-TLS1.1:+TLS1.2"
torrent:ip (ipv4 address)
IP address to send to the tracker. Specify it if you are using
an HTTP proxy.
torrent:ipv6 (ipv6 address)
IPv6 address to send to the tracker. By default, first found
global unicast address is used.
torrent:max-peers (number)
maximum number of peers for a torrent. Least used peers are
removed to maintain this limit.
torrent:port-range (from-to)
port range to accept connections on. A single port is selected
when a torrent starts.
torrent:retracker (URL)
explicit retracker URL, e.g. `http://retracker.local/announce'.
torrent:save-metadata (boolean)
when true, lftp saves metadata of each torrent it works with to
~/.local/share/lftp/torrent/md or ~/.lftp/torrent/md directory
and loads it from there if necessary.
torrent:seed-max-time (time interval)
maximum seed time. After this period of time a complete torrent
shuts down independently of ratio. It can be set to infinity if
needed.
torrent:seed-min-peers (number)
minimum number of peers when the torrent is complete. If there
are less, new peers are actively searched for.
torrent:stop-min-ppr (real number)
minimum per-piece-ratio to stop seeding. Use it to avoid a situ-
ation when a popular piece causes quick raise of the total
ratio.
torrent:stop-on-ratio (real number)
torrent stops when it's complete and ratio reached this number.
torrent:timeout (time interval)
maximum time without any progress. When it's reached, the tor-
rent shuts down.
torrent:use-dht (boolean)
when true, DHT is used.
xfer:auto-rename(boolean)
suggested filenames provided by the server are used if user
explicitly sets this option to `on'. As this could be security
risk, default is off.
xfer:backup-suffix (string)
a time format string (see strftime(3)) for backup file name when
replacing an existing file.
xfer:clobber (boolean)
if this setting is off, get commands will not overwrite existing
files and generate an error instead.
xfer:destination-directory (path or URL to directory)
This setting is used as default -O option for get and mget com-
mands. Default is empty, which means current directory (no -O
option).
xfer:disk-full-fatal (boolean)
when true, lftp aborts a transfer if it cannot write target file
because of full disk or quota; when false, lftp waits for disk
space to be freed.
xfer:eta-period (seconds)
the period over which weighted average rate is calculated to
produce ETA.
xfer:eta-terse (boolean)
show terse ETA (only high order parts). Default is true.
xfer:keep-backup (boolean)
when true, the backup file created before replacing an existing
file is not removed after successful transfer.
xfer:make-backup (boolean)
when true, lftp renames pre-existing file adding xfer:backup-
suffix instead of overwriting it.
xfer:max-redirections (number)
maximum number of redirections. This can be useful for download-
ing over HTTP. 0 prohibits redirections.
xfer:parallel (number)
the default number of parallel transfers in a single
get/put/mget/mput command.
xfer:rate-period (seconds)
the period over which weighted average rate is calculated to be
shown.
xfer:temp-file-name (string)
temporary file name pattern, first asterisk is replaced by the
original file name.
xfer:timeout (time interval)
maximum time without any transfer progress. It can be used to
limit maximum time to retry a transfer from a server not sup-
porting transfer restart.
xfer:use-temp-file (boolean)
when true, a file will be transferred to a temporary file in the
same directory and then renamed.
xfer:verify (boolean)
when true, verify-command is launched after successful transfer
to validate file integrity. Zero exit code of that command
should indicate correctness of the file.
xfer:verify-command (string)
the command to validate file integrity. The only argument is the
path to the file.
The name of a variable can be abbreviated unless it becomes ambiguous.
The prefix before `:' can be omitted too. You can set one variable sev-
eral times for different closures, and thus you can get a particular
settings for particular state. The closure is to be specified after
variable name separated with slash `/'.
The closure for `dns:', `net:', `ftp:', `http:', `hftp:' domain vari-
ables is currently just the host name as you specify it in the `open'
command (with some exceptions where closure is meaningless, e.g.
dns:cache-size). For some `cmd:' domain variables the closure is cur-
rent URL without path. For `log:' domain variables the closure is
either `debug' or `xfer'. For other variables it is not currently
used. See examples in the sample lftp.conf.
Certain commands and settings take a time interval parameter. It has
the format Nx[Nx...], where N is time amount (floating point) and x is
time unit: d - days, h - hours, m - minutes, s - seconds. Default unit
is second. E.g. 5h30m or 5.5h. Also the interval can be `infinity',
`inf', `never', `forever' - it means infinite interval. E.g. `sleep
forever' or `set dns:cache-expire never'.
Boolean settings can be one of (true, on, yes, 1, +) for a True value
or one of (false, off, no, 0, -) for a False value.
Tri-boolean settings have either a boolean value or `auto'.
Integer settings can have a suffix: k - kibi, m - mebi, g - gigi, etc.
They can also have a prefix: 0 - octal, 0x - hexadecimal.
FTP asynchronous mode (pipelining)
Lftp can speed up FTP operations by sending several commands at once
and then checking all the responses. See ftp:sync-mode variable. Some-
times this does not work, thus synchronous mode is the default. You can
try to turn synchronous mode off and see if it works for you. It is
known that some network software dealing with address translation works
incorrectly in the case of several FTP commands in one network packet.
RFC959 says: ``The user-process sending another command before the com-
pletion reply would be in violation of protocol; but server-FTP pro-
cesses should queue any commands that arrive while a preceding command
is in progress''. Also, RFC1123 says: ``Implementors MUST NOT assume
any correspondence between READ boundaries on the control connection
and the Telnet EOL sequences (CR LF).'' and ``a single READ from the
control connection may include more than one FTP command''.
So it must be safe to send several commands at once, which speeds up
operation a lot and seems to work with all Unix and VMS based ftp
servers. Unfortunately, windows based servers often cannot handle sev-
eral commands in one packet, and so cannot some broken routers.
OPTIONS
-d Switch on debugging mode.
-e commands
Execute given commands and don't exit.
-p port
Use the given port to connect.
-u user[,pass]
Use the given username and password to connect. Remember to
quote the password properly in the shell. Also note that it is
not secure to specify the password on command line, use ~/.netrc
file or LFTP_PASSWORD environment variable together with
--env-password option. Alternatively you can use ssh-based pro-
tocols with authorized keys, so you don't have to enter a pass-
word.
--norc Don't execute rc files from the home directory.
--rcfile file
Execute commands from the file. May be specified multiple times.
-f script_file
Execute commands in the file and exit. This option must be used
alone without other arguments (except --norc).
-c commands
Execute the given commands and exit. Commands can be separated
with a semicolon, `&&' or `||'. Remember to quote the commands
argument properly in the shell. This option must be used alone
without other arguments (except --norc).
Other open options may also be given on the lftp command line.
ENVIRONMENT VARIABLES
The following environment variables are processed by lftp:
EDITOR Used as local editor for the edit command.
HOME Used for (local) tilde (`~') expansion.
SHELL Used by the ! command to determine the shell to run.
PAGER This should be the name of the pager to use. It's used by the
more and zmore commands.
http_proxy, https_proxy
Used to set initial http:proxy, hftp:proxy and https:proxy vari-
ables.
ftp_proxy
Used to set initial ftp:proxy or hftp:proxy variables, depending
on URL protocol used in this environment variable.
no_proxy
Used to set initial net:no-proxy variable.
LFTP_MODULE_PATH
Used to set initial module:path variable.
LFTP_HOME
Used to locate the directory that stores user-specific configu-
ration files. If unset, ~/.lftp will be used. Please note that
if this directory does not exist, then XDG directories will be
used.
LFTP_PASSWORD
Used for --env-password open option.
LS_COLORS
used to set initial color:dir-colors variable.
XDG_CONFIG_HOME, XDG_DATA_HOME, XDG_CACHE_HOME
Used to locate the directories for user-specific files when
~/.lftp (or $LFTP_HOME directory) does not exist. Defaults are
~/.config, ~/.local/share and ~/.cache respectively. The suffix
/lftp is appended to make the full path to the directories.
FILES
/etc/lftp.conf
system-wide startup file. Actual location depends on
--sysconfdir configure option. It is /etc when prefix is /usr,
/usr/local/etc by default.
~/.config/lftp/rc or ~/.lftp/rc, ~/.lftprc
These files are executed on lftp startup after /etc/lftp.conf.
~/.local/share/lftp/log or ~/.lftp/log
The file things are logged to when lftp moves into the back-
ground in nohup mode.
~/.local/share/lftp/transfer_log or ~/.lftp/transfer_log
The file transfers are logged to when log:enabled/xfer setting
is set to `yes'. The location can be changed by log:file/xfer
setting.
~/.local/share/lftp/bookmarks or ~/.lftp/bookmarks
The file is used to store lftp's bookmarks. See the bookmark
command.
~/.local/share/lftp/cwd_history or ~/.lftp/cwd_history
The file is used to store last working directories for each site
visited.
~/.local/share/lftp/bg/ or ~/.lftp/bg/
The directory is used to store named sockets for backgrounded
lftp processes.
~/.cache/lftp/DHT/ or ~/.lftp/DHT/"
The directory is used to store DHT id and nodes cache for IPv4
and IPv6. File name suffix is the host name.
~/.cache/lftp/edit/ or ~/.lftp/edit/"
The directory is used to store temporary files for edit command.
~/.local/share/lftp/torrent/md/ or ~/.lftp/torrent/md/"
The directory is used to store torrent metadata. It is espe-
cially useful for magnet links, cached metadata can be loaded
from the directory. It can also serve as torrent history, file
names are the info_hash of torrents.
~/.netrc
The file is consulted to get default login and password to a
server when it is specified without a protocol to the `open'
command. Passwords are also searched here if an URL with user
name but with no password is used.
SEE ALSO
ftpd(8), ftp(1)
RFC854 (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0), RFC2052
(SRV RR), RFC2228 (ftp security extensions), RFC2389 (ftp FEAT),
RFC2428 (ftp/ipv6), RFC2518 (WebDAV), RFC2616 (http/1.1), RFC2617
(http/1.1 authentication), RFC2640 (ftp i18n), RFC3659 (ftp exten-
sions), RFC4217 (ftp over ssl), BEP0003 (BitTorrent Protocol), BEP0005
(DHT Protocol), BEP0006 (Fast Extension), BEP0007 (IPv6 Tracker Exten-
sion), BEP0009 (Extension for Peers to Send Metadata Files), BEP0010
(Extension Protocol), BEP0012 (Multitracker Metadata Extension),
BEP0023 (Tracker Returns Compact Peer Lists), BEP0032 (DHT Extensions
for IPv6).
https://tools.ietf.org/html/draft-preston-ftpext-deflate-04 (ftp
deflate transmission mode),
https://tools.ietf.org/html/draft-ietf-secsh-filexfer-13 (sftp).
http://wiki.theory.org/BitTorrentSpecification
http://www.bittornado.com/docs/multitracker-spec.txt
http://www.rasterbar.com/products/libtorrent/dht_sec.html (DHT security
extension)
http://xbtt.sourceforge.net/udp_tracker_protocol.html (UDP tracker)
AUTHOR
Alexander V. Lukyanov
lav@yars.free.net
ACKNOWLEDGMENTS
This manual page was originally written by Christoph Lameter <clame-
ter@debian.org>, for the Debian GNU/Linux system. The page was improved
and updated later by Nicolas Lichtmaier <nick@Feedback.com.ar>, James
Troup <J.J.Troup@comp.brad.ac.uk> and Alexander V. Lukyanov
<lav@yars.free.net>.
10 Aug 2017 lftp(1)
lftp 4.9.2 - Generated Fri Aug 14 16:10:21 CDT 2020