find(1) General Commands Manual find(1)
NAME
find - search for files in a directory hierarchy
SYNOPSIS
find [-H] [-L] [-P] [-D debugopts] [-Olevel] [starting-point...]
[expression]
DESCRIPTION
This manual page documents the GNU version of find. GNU find searches
the directory tree rooted at each given starting-point by evaluating
the given expression from left to right, according to the rules of
precedence (see section OPERATORS), until the outcome is known (the
left hand side is false for and operations, true for or), at which
point find moves on to the next file name. If no starting-point is
specified, `.' is assumed.
If you are using find in an environment where security is important
(for example if you are using it to search directories that are
writable by other users), you should read the `Security Considerations'
chapter of the findutils documentation, which is called Finding Files
and comes with findutils. That document also includes a lot more
detail and discussion than this manual page, so you may find it a more
useful source of information.
OPTIONS
The -H, -L and -P options control the treatment of symbolic links.
Command-line arguments following these are taken to be names of files
or directories to be examined, up to the first argument that begins
with `-', or the argument `(' or `!'. That argument and any following
arguments are taken to be the expression describing what is to be
searched for. If no paths are given, the current directory is used.
If no expression is given, the expression -print is used (but you
should probably consider using -print0 instead, anyway).
This manual page talks about `options' within the expression list.
These options control the behaviour of find but are specified
immediately after the last path name. The five `real' options -H, -L,
-P, -D and -O must appear before the first path name, if at all. A
double dash -- could theoretically be used to signal that any remaining
arguments are not options, but this does not really work due to the way
find determines the end of the following path arguments: it does that
by reading until an expression argument comes (which also starts with a
`-'). Now, if a path argument would start with a `-', then find would
treat it as expression argument instead. Thus, to ensure that all
start points are taken as such, and especially to prevent that wildcard
patterns expanded by the calling shell are not mistakenly treated as
expression arguments, it is generally safer to prefix wildcards or
dubious path names with either `./' or to use absolute path names
starting with '/'. Alternatively, it is generally safe though non-
portable to use the GNU option -files0-from to pass arbitrary starting
points to find.
-P Never follow symbolic links. This is the default behaviour.
When find examines or prints information about files, and the
file is a symbolic link, the information used shall be taken
from the properties of the symbolic link itself.
-L Follow symbolic links. When find examines or prints information
about files, the information used shall be taken from the
properties of the file to which the link points, not from the
link itself (unless it is a broken symbolic link or find is
unable to examine the file to which the link points). Use of
this option implies -noleaf. If you later use the -P option,
-noleaf will still be in effect. If -L is in effect and find
discovers a symbolic link to a subdirectory during its search,
the subdirectory pointed to by the symbolic link will be
searched.
When the -L option is in effect, the -type predicate will always
match against the type of the file that a symbolic link points
to rather than the link itself (unless the symbolic link is
broken). Actions that can cause symbolic links to become broken
while find is executing (for example -delete) can give rise to
confusing behaviour. Using -L causes the -lname and -ilname
predicates always to return false.
-H Do not follow symbolic links, except while processing the
command line arguments. When find examines or prints
information about files, the information used shall be taken
from the properties of the symbolic link itself. The only
exception to this behaviour is when a file specified on the
command line is a symbolic link, and the link can be resolved.
For that situation, the information used is taken from whatever
the link points to (that is, the link is followed). The
information about the link itself is used as a fallback if the
file pointed to by the symbolic link cannot be examined. If -H
is in effect and one of the paths specified on the command line
is a symbolic link to a directory, the contents of that
findutils 4.10.0 - Generated Tue Aug 20 14:49:39 CDT 2024