aria2c(1) aria2c(1)
NAME
aria2c - The ultra fast download utility
SYNOPSIS
aria2c [OPTIONS] [URL | TORRENT_FILE | METALINK_FILE]...
DESCRIPTION
aria2 is a utility for downloading files. The supported protocols are
HTTP(S), FTP, BitTorrent, and Metalink. aria2 can download a file from
multiple sources/protocols and tries to utilize your maximum download
bandwidth. It supports downloading a file from HTTP(S)/FTP and
BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP
is uploaded to the BitTorrent swarm. Using Metalink's chunk checksums,
aria2 automatically validates chunks of data while downloading a file
like BitTorrent.
OPTIONS
Basic Options
-d, --dir=DIR
The directory to store the downloaded file.
-i, --input-file=FILE
Downloads URIs found in FILE. You can specify multiple URIs for a
single entity: separate URIs on a single line using the TAB
character. Reads input from stdin when - is specified. The
additional out and dir options can be specified after each line of
URIs. This optional line must start with white space(s). See INPUT
FILE section for details.
-l, --log=LOG
The file name of the log file. If - is specified, log is written to
stdout.
-j, --max-concurrent-downloads=N
Set maximum number of parallel downloads for every static
(HTTP/FTP) URL, torrent and metalink. See also -s and -C option.
Default: 5
-V, --check-integrity[=true|false]
Check file integrity by validating piece hashes. This option has
effect only in BitTorrent and Metalink downloads with chunk
checksums. Use this option to re-download a damaged portion of a
file. Default: false
-c, --continue
Continue downloading a partially downloaded file. Use this option
to resume a download started by a web browser or another program
which downloads files sequentially from the beginning. Currently
this option is only applicable to HTTP(S)/FTP downloads.
-h, --help[=CATEGORY]
Print usage and exit. The help messages are classified in several
categories. For example, type "--help=http" for detailed
explanation for the options related to HTTP. If no matching
category is found, search option name using a given word in middle
match and print the result. Available Values: basic, advanced,
http, https, ftp, metalink, bittorrent, all Default: basic
HTTP/FTP Options
--all-proxy=PROXY
Use this proxy server for all protocols. You can override this
setting and specify a proxy server for a particular protocol using
--http-proxy, --https-proxy and --ftp-proxy options. This affects
all URLs. The format of PROXY is
[http://][USER:PASSWORD@]HOST[:PORT]
--connect-timeout=SEC
Set the connect timeout in seconds to establish connection to
HTTP/FTP/proxy server. After the connection is established, this
option makes no effect and --timeout option is used instead.
Default: 60
--lowest-speed-limit=SPEED
Close connection if download speed is lower than or equal to this
value(bytes per sec). 0 means aria2 does not have a lowest speed
limit. You can append K or M(1K = 1024, 1M = 1024K). This option
does not affect BitTorrent downloads. Default: 0
--max-file-not-found=NUM
If aria2 receives `file not found' status from the remote HTTP/FTP
servers NUM times without getting a single byte, then force the
download to fail. Specify 0 to disable this option. This options is
effective only when using HTTP/FTP servers. Default: 0
-m, --max-tries=N
Set number of tries. 0 means unlimited. Default: 5
--no-proxy=DOMAINS
Specify comma separated hostnames or domains where proxy should not
be used.
-o, --out=FILE
The file name of the downloaded file.
Note
In Metalink or BitTorrent download you cannot specify file name. The
file name specified here is only used when the URLs fed to aria2 are
done by command line without -i, -Z option. For example: aria2c -o
myfile.zip http://mirror1/file.zip http://mirror2/file.zip
--proxy-method=METHOD
Set the method to use in proxy request. METHOD is either get or
tunnel. Default: tunnel
-R, --remote-time[=true|false]
Retrieve timestamp of the remote file from the remote HTTP/FTP
server and if it is available, apply it to the local file. Default:
false
--retry-wait=SEC
Set the seconds to wait to retry after an error has occured.
Specify a value between 0 and 60. Default: 5
--server-stat-of=FILE
Specify the filename to which performance profile of the servers is
saved. You can load saved data using --server-stat-if option. See
SERVER PERFORMANCE PROFILE section below for file format.
--server-stat-if=FILE
Specify the filename to load performance profile of the servers.
The loaded data will be used in some URI selector such as feedback.
See also --uri-selector option. See SERVER PERFORMANCE PROFILE
section below for file format.
--server-stat-timeout=SEC
Specifies timeout in seconds to invalidate performance profile of
the servers since the last contact to them. Default: 86400
(24hours)
-s, --split=N
Download a file using N connections. If more than N URLs are given,
first N URLs are used and remaining URLs are used for backup. If
less than N URLs are given, those URLs are used more than once so
that N connections total are made simultaneously. N must be between
1 and 16. Please see -j option too. Please note that in Metalink
download, this option has no effect and use -C option instead.
Default: 5
-t, --timeout=SEC
Set timeout in seconds. Default: 60
--uri-selector=SELECTOR
Specify URI selection algorithm. Possible values are inorder and
feedback. If inorder is given, URI is tried in the order appeared
in the URI list. If feedback is given, aria2 uses download speed
observed in the previous downloads and choose fastest server in the
URI list. This also effectively skips dead mirrors. The observed
download speed is a part of performance profile of servers
mentioned in --server-stat-of and --server-stat-if options.
Default: inorder
HTTP Specific Options
--ca-certificate=FILE
Use the certificate authorities in FILE to verify the peers. The
certificate file must be in PEM format and can contain multiple CA
certificates. Use --check-certificate option to enable
verification.
--certificate=FILE
Use the client certificate in FILE. The certificate must be in PEM
format. You may use --private-key option to specify the private
key.
--check-certificate[=true|false]
Verify the peer using certificates specified in --ca-certificate
option. Default: true
--http-auth-scheme=SCHEME
Set HTTP authentication scheme. Currently, basic is the only
supported scheme. Default: basic
--http-user=USER
Set HTTP user. This affects all URLs.
--http-passwd=PASSWD
Set HTTP password. This affects all URLs.
--http-proxy=PROXY
Use this proxy server for HTTP. See also --all-proxy option. This
affects all URLs. The format of PROXY is
[http://][USER:PASSWORD@]HOST[:PORT]
--https-proxy=PROXY
Use this proxy server for HTTPS. See also --all-proxy option. This
affects all URLs. The format of PROXY is
[http://][USER:PASSWORD@]HOST[:PORT]
--private-key=FILE
Use the private key in FILE. The private key must be decrypted and
in PEM format. The behavior when encrypted one is given is
undefined. See also --certificate option.
--referer=REFERER
Set Referer. This affects all URLs.
--enable-http-keep-alive[=true|false]
Enable HTTP/1.1 persistent connection. Default: true
--enable-http-pipelining[=true|false]
Enable HTTP/1.1 pipelining. Default: false
--header=HEADER
Append HEADER to HTTP request header. You can use this option
repeatedly to specify more than one header: aria2c --header="X-A:
b78" --header="X-B: 9J1" http://host/file
--load-cookies=FILE
Load Cookies from FILE using the Firefox3 format (SQLite3) and the
Mozilla/Firefox(1.x/2.x)/Netscape format.
Note
If aria2 is built without libsqlite3, then it doesn't support Firefox3
cookie format.
--use-head[=true|false]
Use HEAD method for the first request to the HTTP server. Default:
true
-U, --user-agent=USER_AGENT
Set user agent for HTTP(S) downloads.
FTP Specific Options
--ftp-user=USER
Set FTP user. This affects all URLs. Default: anonymous
--ftp-passwd=PASSWD
Set FTP password. This affects all URLs. Default: ARIA2USER@
-p, --ftp-pasv[=true|false]
Use the passive mode in FTP. If false is given, the active mode
will be used. Default: true
--ftp-proxy=PROXY
Use this proxy server for FTP. See also --all-proxy option. This
affects all URLs. The format of PROXY is
[http://][USER:PASSWORD@]HOST[:PORT]
--ftp-type=TYPE
Set FTP transfer type. TYPE is either binary or ascii. Default:
binary
--ftp-reuse-connection[=true|false]
Reuse connection in FTP. Default: true
-n, --no-netrc
Disables netrc support. netrc support is enabled by default.
BitTorrent/Metalink Options
--select-file=INDEX...
Set file to download by specifying its index. You can find the file
index using the --show-files option. Multiple indexes can be
specified by using ",", for example: 3,6. You can also use "-" to
specify a range: 1-5. "," and "-" can be used together: 1-5,8,9.
When used with the -M option, index may vary depending on the query
(see --metalink-* options).
Note
In multi file torrent, the adjacent files specified by this option may
also be downloaded. This is by design, not a bug. A single piece may
include several files or part of files, and aria2 writes the piece to
the appropriate files.
-S, --show-files
Print file listing of .torrent or .metalink file and exit. In case
of .torrent file, additional information (infohash, piece length,
etc) is also printed.
BitTorrent Specific Options
--bt-max-open-files=NUM
Specify maximum number of files to open in each BitTorrent
download. Default: 100
--bt-min-crypto-level=plain|arc4
Set minimum level of encryption method. If several encryption
methods are provided by a peer, aria2 chooses the lowest one which
satisfies the given level. Default: plain
--bt-require-crypto=true|false
If true is given, aria2 doesn't accept and establish connection
with legacy BitTorrent handshake(\19BitTorrent protocol). Thus
aria2 always uses Obfuscation handshake. Default: false
--bt-request-peer-speed-limit=SPEED
In BitTorrent downloads, if the download speed is lower than SPEED,
aria2 initiates and accepts connections ignoring max peer cap. You
can append K or M(1K = 1024, 1M = 1024K). Default: 51200
--bt-seed-unverified[=true|false]
Seed previously downloaded files without verifying piece hashes.
Default: false
--dht-entry-point=HOST:PORT
Set host and port as an entry point to DHT network.
--dht-file-path=PATH
Change the DHT routing table file to PATH. Default:
$HOME/.aria2/dht.dat
--dht-listen-port=PORT...
Set UDP listening port for DHT. Multiple ports can be specified by
using ",", for example: 6881,6885. You can also use "-" to specify
a range: 6881-6999. "," and "-" can be used together. Default:
6881-6999
Note
Make sure that the specified ports are open for incoming UDP traffic.
--direct-file-mapping=true|false
Directly read from and write to each file mentioned in .torrent
file. Use this option if lots of files are listed in .torrent file
and aria2 complains it cannot open files anymore. Default: true
--enable-dht[=true|false]
Enable DHT functionality. If a private flag is set in a torrent,
aria2 doesn't use DHT for that download even if true is given.
Default: false
--enable-peer-exchange[=true|false]
Enable Peer Exchange extension. If a private flag is set in a
torrent, this feature is disabled for that download even if true is
given. Default: true
--follow-torrent=true|false|mem
If true or mem is specified, when a file whose suffix is ".torrent"
or content type is "application/x-bittorrent" is downloaded, aria2
parses it as a torrent file and downloads files mentioned in it. If
mem is specified, a torrent file is not written to the disk, but is
just kept in memory. If false is specified, the action mentioned
above is not taken. Default: true
--listen-port=PORT...
Set TCP port number for BitTorrent downloads. Multiple ports can be
specified by using ",", for example: 6881,6885. You can also use
"-" to specify a range: 6881-6999. "," and "-" can be used
together: 6881-6889,6999. Default: 6881-6999
Note
Make sure that the specified ports are open for incoming TCP traffic.
--max-overall-upload-limit=SPEED
Set max overall upload speed in bytes/sec. 0 means unrestricted.
You can append K or M(1K = 1024, 1M = 1024K). To limit the upload
speed per torrent, use --max-upload-limit option. If non-zero value
is specified, --max-upload-limit option is ignored. Default: 0
-u, --max-upload-limit=SPEED
Set max upload speed per each torrent in bytes/sec. 0 means
unrestricted. You can append K or M(1K = 1024, 1M = 1024K). To
limit the overall upload speed, use --max-overall-upload-limit
option. Default: 0
--peer-id-prefix=PEERI_ID_PREFIX
Specify the prefix of peer ID. The peer ID in BitTorrent is 20 byte
length. If more than 20 bytes are specified, only first 20 bytes
are used. If less than 20 bytes are specified, the random alphabet
characters are added to make it's length 20 bytes. Default: -aria2-
--seed-ratio=RATIO
Specify share ratio. Seed completed torrents until share ratio
reaches RATIO. You are strongly encouraged to specify equals or
more than 1.0 here. Specify 0.0 if you intend to do seeding
regardless of share ratio. If --seed-time option is specified along
with this option, seeding ends when at least one of the conditions
is satisfied. Default: 1.0
--seed-time=MINUTES
Specify seeding time in minutes. Also see the --seed-ratio option.
-T, --torrent-file=TORRENT_FILE
The path to the .torrent file. You are not required to use this
option because you can specify a torrent file without -T.
Metalink Specific Options
--follow-metalink=true|false|mem
If true or mem is specified, when a file whose suffix is ".metaink"
or content type of "application/metalink+xml" is downloaded, aria2
parses it as a metalink file and downloads files mentioned in it.
If mem is specified, a metalink file is not written to the disk,
but is just kept in memory. If false is specified, the action
mentioned above is not taken. Default: true
-M, --metalink-file=METALINK_FILE
The file path to .metalink file. You are not required to use this
option because you can specify a metalink file without -M.
-C, --metalink-servers=NUM_SERVERS
The number of servers to connect to simultaneously. Some Metalinks
regulate the number of servers to connect. aria2 strictly respects
them. This means that if Metalink defines the maxconnections
attribute lower than NUM_SERVERS, then aria2 uses the value of
maxconnections attribute instead of NUM_SERVERS. See also -s and -j
options. Default: 5
--metalink-language=LANGUAGE
The language of the file to download.
--metalink-location=LOCATION[,...]
The location of the preferred server. A comma-delimited list of
locations is acceptable, for example, JP,US.
--metalink-os=OS
The operating system of the file to download.
--metalink-version=VERSION
The version of the file to download.
--metalink-preferred-protocol=PROTO
Specify preferred protocol. The possible values are http, https,
ftp and none. Specify none to disable this feature. Default: none
--metalink-enable-unique-protocol=true|false
If true is given and several protocols are available for a mirror
in a metalink file, aria2 uses one of them. Use
--metalink-preferred-protocol option to specify the preference of
protocol. Default: true
Advanced Options
--allow-overwrite=true|false
If false is given, aria2 doesn't download a file which already
exists but the corresponding .aria2 file doesn't exist. In
HTTP(S)/FTP download, if --auto-file-renaming=true then, file name
will be renamed. See --auto-file-renaming for details. Default:
false
--allow-piece-length-change=true|false
If false is given, aria2 aborts download when a piece length is
different from one in a control file. If true is given, you can
proceed but some download progress will be lost. Default: false
--async-dns[=true|false]
Enable asynchronous DNS. Default: true
--auto-file-renaming[=true|false]
Rename file name if the same file already exists. This option works
only in HTTP(S)/FTP download. The new file name has a dot and a
number(1..9999) appended. Default: true
--auto-save-interval=SEC
Save a control file(*.aria2) every SEC seconds. If 0 is given, a
control file is not saved during download. aria2 saves a control
file when it stops regardless of the value. The possible values are
between 0 to 600. Default: 60
--conf-path=PATH
Change the configuration file path to PATH. Default:
$HOME/.aria2/aria2.conf
-D, --daemon
Run as daemon.
--enable-direct-io[=true|false]
Enable directI/O, which lowers cpu usage while allocating/checking
files. Turn off if you encounter any error. Default: true
--file-allocation=METHOD
Specify file allocation method. METHOD is either none or prealloc.
none doesn't pre-allocate file space. prealloc pre-allocates file
space before download begins. This may take some time depending on
the size of the file. Default: prealloc
--log-level=LEVEL
Set log level to output. LEVEL is either debug, info, notice, warn
or error. Default: debug
--summary-interval=SEC
Set interval in seconds to output download progress summary.
Setting 0 suppresses the output. Default: 60
Note
In multi file torrent downloads, the files adjacent forward to the
specified files are also allocated if they share the same piece.
-Z, --force-sequential[=true|false]
Fetch URIs in the command-line sequentially and download each URI
in a separate session, like the usual command-line download
utilities. Default: false
--max-download-limit=SPEED
Set max download speed in bytes per sec. 0 means unrestricted. You
can append K or M(1K = 1024, 1M = 1024K). Default: 0
--no-conf
Disable loading aria2.conf file.
--no-file-allocation-limit=SIZE
No file allocation is made for files whose size is smaller than
SIZE. You can append K or M(1K = 1024, 1M = 1024K). Default: 5M
-P, --parameterized-uri[=true|false]
Enable parameterized URI support. You can specify set of parts:
http://{sv1,sv2,sv3}/foo.iso. Also you can specify numeric
sequences with step counter: http://host/image[000-100:2].img. A
step counter can be omitted. If all URIs do not point to the same
file, such as the second example above, -Z option is required.
Default: false
-q, --quiet[=true|false]
Make aria2 quiet (no console output). Default: false
--realtime-chunk-checksum=true|false
Validate chunk of data by calculating checksum while downloading a
file if chunk checksums are provided. Default: true
--stop=SEC
Stop application after SEC seconds has passed. If 0 is given, this
feature is disabled. Default: 0
-v, --version
Print the version number, copyright and the configuration
information and exit.
OPTIONS THAT TAKE AN OPTIONAL ARGUMENT
The options that have its argument surrounded by square brackets([])
take an optional argument. Usually omiting the argument is evaluated to
true. If you use short form of these options(such as -V) and give an
argument, then the option name and its argument should be
concatenated(e.g. -Vfalse). If any spaces are inserted between the
option name and the argument, the argument will be treated as URI and
usually this is not what you expect.
URL, TORRENT_FILE, METALINK_FILE
You can specify multiple URLs in command-line. Unless you specify -Z
option, all URLs must point to the same file or downloading will fail.
You can also specify arbitrary number of torrent files and metalink
files stored on a local drive. Please note that they are always treated
as a separate download.
You can specify both torrent file with -T option and URLs. By doing
this, you can download a file from both torrent swarm and HTTP(S)/FTP
server at the same time, while the data from HTTP(S)/FTP are uploaded
to the torrent swarm. Note that only single file torrent can be
integrated with HTTP(S)/FTP.
Note
Make sure that URL is quoted with single(') or double(") quotation if
it contains "&" or any characters that have special meaning in shell.
EXAMPLES
HTTP/FTP Segmented Download
Download a file
aria2c http://host/file.zip
Note
aria2 uses 5 connections to download 1 file by default.
Download a file using 1 connection
aria2c -s1 http://host/file.zip
Note
aria2 uses 5 connections to download 1 file by default. -s1
limits the number of connections to just 1.
Note
To pause a download, press Ctrl-C. You can resume the transfer
by running aria2c with the same argument in the same directory.
You can change URLs as long as they are pointing to the same
file.
Download a file from 2 different HTTP servers
aria2c http://host/file.zip http://mirror/file.zip
Download a file from HTTP and FTP servers
aria2c http://host1/file.zip ftp://host2/file.zip
Download files listed in a text file concurrently
aria2c -ifiles.txt -j2
Note
-j option specifies the number of parallel downloads.
Using proxy
For HTTP:
aria2c --http-proxy=http://proxy:8080 http://host/file
For FTP:
aria2c --ftp-proxy=http://proxy:8080 ftp://host/file
Note
See --http-proxy, --https-proxy, --ftp-proxy and --all-proxy for
details. You can specify proxy in the environment variables. See
ENVIRONMENT section.
Proxy with authorization
aria2c --http-proxy=http://username:password@proxy:8080 http://host/file
Metalink Download
Download files with remote Metalink
aria2c --follow-metalink=mem http://host/file.metalink
Download using a local metalink file
aria2c -p --lowest-speed-limit=4000 file.metalink
Note
To pause a download, press Ctrl-C. You can resume the transfer
by running aria2c with the same argument in the same directory.
Download several local metalink files
aria2c -j2 file1.metalink file2.metalink
Download only selected files using index
aria2c --select-file=1-4,8 file.metalink
Note
The index is printed to the console using -S option.
Download a file using a local .metalink file with user preference
aria2c --metalink-location=JP,US --metalink-version=1.1 --metalink-language=en-US file.metalink
BitTorrent Download
Download files from remote BitTorrent file
aria2c --follow-torrent=mem http://host/file.torrent
Download using a local torrent file
aria2c --max-upload-limit=40K file.torrent
Note
--max-upload-limit specifies the max of upload rate.
Note
To pause a download, press Ctrl-C. You can resume the transfer
by run aria2c with the same argument in the same directory.
Download 2 torrents
aria2c -j2 file1.torrent file2.torrent
Download a file using torrent and HTTP/FTP server
aria2c -Ttest.torrent http://host1/file ftp://host2/file
Note
Downloading multi file torrent with HTTP/FTP is not supported.
Download only selected files using index(usually called "selectable
download")
aria2c --select-file=1-4,8 file.torrent
Note
The index is printed to the console using -S option.
Change the listening port for incoming peer
aria2c --listen-port=7000-7001,8000 file.torrent
Note
Since aria2 doesn't configure firewall or router for port
forwarding, it's up to you to do it manually.
Specify the condition to stop program after torrent download finished
aria2c --seed-time=120 --seed-ratio=1.0 file.torrent
Note
In the above example, the program exits when the 120 minutes has
elapsed since download completed or seed ratio reaches 1.0.
Throttle upload speed
aria2c --max-upload-limit=100K file.torrent
Enable DHT
aria2c --enable-dht --dht-listen-port=6881 file.torrent
Note
DHT uses udp port. Since aria2 doesn't configure firewall or
router for port forwarding, it's up to you to do it manually.
More advanced HTTP features
Load cookies
aria2c --load-cookies=cookies.txt http://host/file.zip
Note
You can use Firefox/Mozilla's cookie file without modification.
Resume download started by web browsers or another programs
aria2c -c -s2 http://host/partiallydownloadedfile.zip
Client certificate authorization for SSL/TLS
aria2c --certificate=/path/to/mycert.pem --private-key=/path/to/mykey.pem https://host/file
Note
The file specified in --private-key must be decrypted. The
behavior when encrypted one is given is undefined.
Verify peer in SSL/TLS using given CA certificates
aria2c --ca-certificate=/path/to/ca-certificates.crt --check-certificate https://host/file
And more advanced features
Throttle download speed
aria2c --max-download-limit=100K file.metalink
Repair a damaged download using -V option
aria2c -V file.metalink
Note
This option is only available used with BitTorrent or metalink
with chunk checksums.
Drop connection if download speed is lower than specified value
aria2c --lowest-speed-limit=10K file.metalink
Parameterized URI support
You can specify set of parts:
aria2c -P http://{host1,host2,host3}/file.iso
You can specify numeric sequence:
aria2c -Z -P http://host/image[000-100].png
Note
-Z option is required if the all URIs don't point to the same
file, such as the above example.
You can specify step counter:
aria2c -Z -P http://host/image[A-Z:2].png
Parallel downloads of arbitrary number of URL,metalink,torrent
aria2c -j3 -Z http://host/file1 file2.torrent file3.metalink
BitTorrent Encryption
Encrypt whole payload using ARC4:
aria2c --bt-min-crypto-level=arc4 --bt-require-crypto=true file.torrent
RESUME DOWNLOAD
Usually, you can resume transfer by just issuing same command(aria2c
URL) if the previous transfer is made by aria2.
If the previous transfer is made by a browser or wget like sequential
download manager, then use -c option to continue the transfer(aria2c -c
URL).
CONTROL FILE
aria2 uses a control file to track the progress of a download. A
control file is placed in the same directory as the downloading file
and its filename is the filename of downloading file with ".aria2"
appended. For example, if you are downloading file.zip, then the
control file should be file.zip.aria2. (There is a exception for this
naming convention. If you are downloading a multi torrent, its control
file is the "top directory" name of the torrent with ".aria2" appended.
The "top directory" name is a value of "name" key in "info" directory
in a torrent file.)
Usually a control file is deleted once download completed. If aria2
decides that download cannot be resumed(for example, when downloading a
file from a HTTP server which doesn't support resume), a control file
is not created.
Normally if you lose a control file, you cannot resume download. But if
you have a torrent or metalink with chunk checksums for the file, you
can resume the download without a control file by giving -V option to
aria2c in command-line.
SEEDING DOWNLOADED FILE IN BITTORRENT
You can seed downloaded file using -V option.
aria2c -V file.torrent
INPUT FILE
The input file can contain a list of URIs for aria2 to download. You
can specify multiple URIs for a single entity: separate URIs on a
single line using the TAB character.
Each line is treated as if it is provided in command-line argument.
Therefore they are affected by -Z and -P options. The additional out
and dir options can be specified after each line of URIs. This optional
line must start with white space(s).
For example, the content of uri.txt is
http://server/file.iso http://mirror/file.iso
dir=/iso_images
out=file.img
http://foo/bar
If aria2 is executed with -i uri.txt -d /tmp options, then file.iso is
saved as /iso_images/file.img and it is downloaded from
http://server/file.iso and http://mirror/file.iso. The file bar is
downloaded from http://foo/bar and saved as /tmp/bar.
In some cases, out parameter has no effect. See note of --out option
for the restrictions.
SERVER PERFORMANCE PROFILE
This section describes the format of server performance profile. The
file is plain text and each line has several NAME=VALUE pair, delimited
by comma. Currently following NAMEs are recognized:
host
Hostname of the server. Required.
protocol
Protocol for this profile, such as ftp, http. Required.
dl_speed
The average download speed observed in the previous download in
bytes per sec. Required.
last_updated
Last contact time in GMT with this server, specified in the seconds
from the Epoch. Required.
status
ERROR is set when server cannot be reached or out-of-service or
timeout occurred. Otherwise, OK is set.
Those fields must exist in one line. The order of the fields is not
significant. You can put pairs other than the above; they are simply
ignored.
An example follows:
host=localhost, protocol=http, dl_speed=32000, last_updated=1222491640, status=OK
host=localhost, protocol=ftp, dl_speed=0, last_updated=1222491632, status=ERROR
FILES
aria2.conf
User configuration file. It must be placed under $HOME/.aria2 and must
be named aria2.conf. In each line, there is 1 parameter whose syntax is
name=value pair, where name is the long command-line option name
without -- prefix. The lines beginning # are treated as comments.
# sample configuration file for aria2c
listen-port=60000
dht-listen-port=60000
seed-ratio=1.0
max-upload-limit=50K
ftp-pasv=true
dht.dat
By default, the routing table of DHT is saved to the path
$HOME/.aria2/dht.dat.
ENVIRONMENT
aria2 recognizes the following environment variables.
http_proxy [http://][USER:PASSWORD@]HOST[:PORT]
Specify proxy server for use in HTTP. Overrides http-proxy value in
configuration file. The command-line option --http-proxy overrides
this value.
https_proxy [http://][USER:PASSWORD@]HOST[:PORT]
Specify proxy server for use in HTTPS. Overrides https-proxy value
in configuration file. The command-line option --https-proxy
overrides this value.
ftp_proxy [http://][USER:PASSWORD@]HOST[:PORT]
Specify proxy server for use in FTP. Overrides ftp-proxy value in
configuration file. The command-line option --ftp-proxy overrides
this value.
all_proxy [http://][USER:PASSWORD@]HOST[:PORT]
Specify proxy server for use if no protocol-specific proxy is
specified. Overrides all-proxy value in configuration file. The
command-line option --all-proxy overrides this value.
no_proxy [DOMAIN,...]
Specify comma-separated hostname or domains to which proxy should
not be used. Overrides no-proxy value in configuration file. The
command-line option --no-proxy overrides this value.
RESOURCES
Project web site: http://aria2.sourceforge.net/
metalink: http://www.metalinker.org/
REPORTING BUGS
Report bugs to Tatsuhiro Tsujikawa <t-tujikawa at
users.sourceforge.net>
AUTHOR
Tatsuhiro Tsujikawa <t-tujikawa at users.sourceforge.net>
COPYRIGHT
Copyright (C) 2006, 2008 Tatsuhiro Tsujikawa
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations including
the two. You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify file(s) with
this exception, you may extend this exception to your version of the
file(s), but you are not obligated to do so. If you do not wish to do
so, delete this exception statement from your version. If you delete
this exception statement from all source files in the program, then
also delete it here.
12/29/2008 aria2c(1)
aria2 1.1.2 - Generated Wed Jan 7 20:52:54 CST 2009