The
utility recursively descends the directory tree for each
pathname
listed, evaluating an
expression
(composed of the
``primaries''
and
``operands''
listed below) in terms
of each file in the tree.
The options are as follows:
-E
Interpret regular expressions followed by
-regex
and
-iregex
primaries as extended (modern) regular expressions rather than basic
regular expressions (BRE's).
The
re_format7
manual page fully describes both formats.
-H
Cause the file information and file type (see
stat(2))
returned for each symbolic link specified on the command line to be
those of the file referenced by the link, not the link itself.
If the referenced file does not exist, the file information and type will
be for the link itself.
File information of all symbolic links not on
the command line is that of the link itself.
-L
Cause the file information and file type (see
stat(2))
returned for each symbolic link to be those of the file referenced by the
link, not the link itself.
If the referenced file does not exist, the file information and type will
be for the link itself.
This option is equivalent to the deprecated
-follow
primary.
-P
Cause the file information and file type (see
stat(2))
returned for each symbolic link to be those of the link itself.
This is the default.
-X
Permit
to be safely used in conjunction with
xargs(1).
If a file name contains any of the delimiting characters used by
xargs(1),
a diagnostic message is displayed on standard error, and the file
is skipped.
The delimiting characters include single
(`` '
''
)
and double
(``
''
)
quotes, backslash
(``\
''
)
space, tab and newline characters.
However, you may wish to consider the
-print0
primary in conjunction with
``xargs -0
''
as an effective alternative.
-d
Cause
to perform a depth-first traversal, i.e., directories
are visited in post-order and all entries in a directory will be acted
on before the directory itself.
By default,
visits directories in pre-order, i.e., before their contents.
Note, the default is
not
a breadth-first traversal.
This option is equivalent to the
-depth
primary of
St -p1003.1-2001 .
The
-d
option
can be useful when
is used with
cpio(1)
to process files that are contained in directories with unusual permissions.
It ensures that you have write permission while you are placing files in a
directory, then sets the directory's permissions as the last thing.
-f
Specify a file hierarchy for
to traverse.
File hierarchies may also be specified as the operands immediately
following the options.
-s
Cause
to traverse the file hierarchies in lexicographical order,
i.e., alphabetical order within each directory.
Note:
`find'
-s
and
`find'
| sort
may give different results.
-x
Prevent
from descending into directories that have a device number different
than that of the file from which the descent began.
This option is equivalent to the deprecated
-xdev
primary.
PRIMARIES
-Bmin n
True if the difference between the time of a file's inode creation
and the time
was started, rounded up to the next full minute, is
n
minutes.
-Bnewer file
Same as
-newerBm
-Btime n [smhdw
]
If no units are specified, this primary evaluates to
true if the difference between the time of a file's inode creation
and the time
was started, rounded up to the next full 24-hour period, is
n
24-hour periods.
If units are specified, this primary evaluates to
true if the difference between the time of a file's inode creation
and the time
was started is exactly
n
units.
Please refer to the
-atime
primary description for information on supported time units.
-acl
May be used in conjunction with other primaries to locate
files with extended ACLs.
See
acl(3)
for more information.
-amin n
True if the difference between the file last access time and the time
was started, rounded up to the next full minute, is
n
minutes.
-anewer file
Same as
-neweram
-atime n [smhdw
]
If no units are specified, this primary evaluates to
true if the difference between the file last access time and the time
was started, rounded up to the next full 24-hour period, is
n
24-hour periods.
If units are specified, this primary evaluates to
true if the difference between the file last access time and the time
was started is exactly
n
units.
Possible time units are as follows:
s
second
m
minute (60 seconds)
h
hour (60 minutes)
d
day (24 hours)
w
week (7 days)
Any number of units may be combined in one
-atime
argument, for example,
``-atime -1h30m
''
Units are probably only useful when used in conjunction with the
+
or
-
modifier.
-cmin n
True if the difference between the time of last change of file status
information and the time
was started, rounded up to the next full minute, is
n
minutes.
-cnewer file
Same as
-newercm
-ctime n [smhdw
]
If no units are specified, this primary evaluates to
true if the difference between the time of last change of file status
information and the time
was started, rounded up to the next full 24-hour period, is
n
24-hour periods.
If units are specified, this primary evaluates to
true if the difference between the time of last change of file status
information and the time
was started is exactly
n
units.
Please refer to the
-atime
primary description for information on supported time units.
-delete
Delete found files and/or directories.
Always returns true.
This executes
from the current working directory as
recurses down the tree.
It will not attempt to delete a filename with a
``/
''
character in its pathname relative to
``.
''
for security reasons.
Depth-first traversal processing is implied by this option.
-depth
Always true;
same as the
-d
option.
-depth n
True if the depth of the file relative to the starting point of the traversal
is
n
-empty
True if the current file or directory is empty.
-exec utility [argument ... ;
]
True if the program named
utility
returns a zero value as its exit status.
Optional
arguments
may be passed to the utility.
The expression must be terminated by a semicolon
(``;
''
)
If you invoke
from a shell you may need to quote the semicolon if the shell would
otherwise treat it as a control operator.
If the string
``{}
''
appears anywhere in the utility name or the
arguments it is replaced by the pathname of the current file.
Utility
will be executed from the directory from which
was executed.
Utility
and
arguments
are not subject to the further expansion of shell patterns
and constructs.
-exec utility [argument ... {}
]
Same as
-exec
except that
``{}
''
is replaced with as many pathnames as possible for each invocation of
utility
This behaviour is similar to that of
xargs(1).
-execdir utility [argument ... ;
]
The
-execdir
primary is identical to the
-exec
primary with the exception that
utility
will be executed from the directory that holds
the current file.
The filename substituted for
the string
``{}
''
is not qualified.
-flags [- | + flags , notflags
]
The flags are specified using symbolic names (see
chflags(1)).
Those with the
Qq Li no
prefix (except
Qq Li nodump )
are said to be
notflags
Flags in
flags
are checked to be set, and flags in
notflags
are checked to be not set.
Note that this is different from
-perm
which only allows the user to specify mode bits that are set.
If flags are preceded by a dash
(``-
''
)
this primary evaluates to true
if at least all of the bits in
flags
and none of the bits in
notflags
are set in the file's flags bits.
If flags are preceded by a plus
(``+
''
)
this primary evaluates to true
if any of the bits in
flags
is set in the file's flags bits,
or any of the bits in
notflags
is not set in the file's flags bits.
Otherwise,
this primary evaluates to true
if the bits in
flags
exactly match the file's flags bits,
and none of the
flags
bits match those of
notflags
-fstype type
True if the file is contained in a file system of type
type
The
sysctl(8)
command can be used to find out the types of file systems
that are available on the system:
"sysctl vfs"
In addition, there are two pseudo-types,
``local
''
and
``rdonly
''
The former matches any file system physically mounted on the system where
the
is being executed and the latter matches any file system which is
mounted read-only.
-group gname
True if the file belongs to the group
gname
If
gname
is numeric and there is no such group name, then
gname
is treated as a group ID.
-iname pattern
Like
-name
but the match is case insensitive.
-inum n
True if the file has inode number
n
-ipath pattern
Like
-path
but the match is case insensitive.
-iregex pattern
Like
-regex
but the match is case insensitive.
-links n
True if the file has
n
links.
-ls
This primary always evaluates to true.
The following information for the current file is written to standard output:
its inode number, size in 512-byte blocks, file permissions, number of hard
links, owner, group, size in bytes, last modification time, and pathname.
If the file is a block or character special file, the major and minor numbers
will be displayed instead of the size in bytes.
If the file is a symbolic link, the pathname of the linked-to file will be
displayed preceded by
``->
''
The format is identical to that produced by
-words
``ls -dgils
''
-maxdepth n
Always true; descend at most
n
directory levels below the command line arguments.
If any
-maxdepth
primary is specified, it applies to the entire expression even if it would
not normally be evaluated.
``-maxdepth 0
''
limits the whole search to the command line arguments.
-mindepth n
Always true; do not apply any tests or actions at levels less than
n
If any
-mindepth
primary is specified, it applies to the entire expression even if it would
not normally be evaluated.
``-mindepth 1
''
processes all but the command line arguments.
-mmin n
True if the difference between the file last modification time and the time
was started, rounded up to the next full minute, is
n
minutes.
-mnewer file
Same as
-newer
-mtime n [smhdw
]
If no units are specified, this primary evaluates to
true if the difference between the file last modification time and the time
was started, rounded up to the next full 24-hour period, is
n
24-hour periods.
If units are specified, this primary evaluates to
true if the difference between the file last modification time and the time
was started is exactly
n
units.
Please refer to the
-atime
primary description for information on supported time units.
-name pattern
True if the last component of the pathname being examined matches
pattern
Special shell pattern matching characters
``( [
''
``]
''
``*
''
and
``?
''
may be used as part of
pattern
These characters may be matched explicitly by escaping them with a
backslash
(``\
''
)
-newer file
True if the current file has a more recent last modification time than
file
-newer X Y file
True if the current file has a more recent last access time
(X = a
)
inode creation time
(X = B
)
change time
(X = c
)
or modification time
(X = m
)
than the last access time
(Y = a
)
inode creation time
(Y = B
)
change time
(Y = c
)
or modification time
(Y = m
)
of
file
In addition, if
Y = t
then
file
is instead interpreted as a direct date specification of the form
understood by
cvs(1).
Note that
-newermm
is equivalent to
-newer
-nogroup
True if the file belongs to an unknown group.
-nouser
True if the file belongs to an unknown user.
-ok utility [argument ... ;
]
The
-ok
primary is identical to the
-exec
primary with the exception that
requests user affirmation for the execution of the
utility
by printing
a message to the terminal and reading a response.
If the response is not affirmative
`('
y
in the
``POSIX
''
locale),
the command is not executed and the
value of the
-ok
expression is false.
-okdir utility [argument ... ;
]
The
-okdir
primary is identical to the
-execdir
primary with the same exception as described for the
-ok
primary.
-path pattern
True if the pathname being examined matches
pattern
Special shell pattern matching characters
``( [
''
``]
''
``*
''
and
``?
''
may be used as part of
pattern
These characters may be matched explicitly by escaping them with a
backslash
(``\
''
)
Slashes
(``/
''
)
are treated as normal characters and do not have to be
matched explicitly.
-perm [- | + mode
]
The
mode
may be either symbolic (see
chmod(1))
or an octal number.
If the
mode
is symbolic, a starting value of zero is assumed and the
mode
sets or clears permissions without regard to the process' file mode
creation mask.
If the
mode
is octal, only bits 07777
(S_ISUID | S_ISGID | S_ISTXT | S_IRWXU | S_IRWXG | S_IRWXO
)
of the file's mode bits participate
in the comparison.
If the
mode
is preceded by a dash
(``-
''
)
this primary evaluates to true
if at least all of the bits in the
mode
are set in the file's mode bits.
If the
mode
is preceded by a plus
(``+
''
)
this primary evaluates to true
if any of the bits in the
mode
are set in the file's mode bits.
Otherwise, this primary evaluates to true if
the bits in the
mode
exactly match the file's mode bits.
Note, the first character of a symbolic mode may not be a dash
(``-
''
)
-print
This primary always evaluates to true.
It prints the pathname of the current file to standard output.
If none of
-exec , -ls , -print0
or
-ok
is specified, the given expression shall be effectively replaced by
( given expression ) -print
-print0
This primary always evaluates to true.
It prints the pathname of the current file to standard output, followed by an
ASCIINUL
character (character code 0).
-prune
This primary always evaluates to true.
It causes
to not descend into the current file.
Note, the
-prune
primary has no effect if the
-d
option was specified.
-regex pattern
True if the whole path of the file matches
pattern
using regular expression.
To match a file named
``./foo/xyzzy
''
you can use the regular expression
``.*/[xyz]*
''
or
``.*/foo/.*
''
but not
``xyzzy
''
or
``/foo/
''
-size n [ckMGTP
]
True if the file's size, rounded up, in 512-byte blocks is
n
If
n
is followed by a
c
then the primary is true if the
file's size is
n
bytes (characters).
Similarly if
n
is followed by a scale indicator then the file's size is compared to
n
scaled as:
k
kilobytes (1024 bytes)
M
megabytes (1024 kilobytes)
G
gigabytes (1024 megabytes)
T
terabytes (1024 gigabytes)
P
petabytes (1024 terabytes)
-type t
True if the file is of the specified type.
Possible file types are as follows:
b
block special
c
character special
d
directory
f
regular file
l
symbolic link
p
FIFO
s
socket
-user uname
True if the file belongs to the user
uname
If
uname
is numeric and there is no such user name, then
uname
is treated as a user ID.
All primaries which take a numeric argument allow the number to be
preceded by a plus sign
(``+
''
)
or a minus sign
(``-
''
)
A preceding plus sign means
``more than n''
a preceding minus sign means
``less than n''
and neither means
``exactly n''
OPERATORS
The primaries may be combined using the following operators.
The operators are listed in order of decreasing precedence.
( expression )
This evaluates to true if the parenthesized expression evaluates to
true.
! expression
-false expression
-not expression
This is the unary
NOT
operator.
It evaluates to true if the expression is false.
expression -and expression
expression expression
The
-and
operator is the logical
AND
operator.
As it is implied by the juxtaposition of two expressions it does not
have to be specified.
The expression evaluates to true if both expressions are true.
The second expression is not evaluated if the first expression is false.
expression -or expression
The
-or
operator is the logical
OR
operator.
The expression evaluates to true if either the first or the second expression
is true.
The second expression is not evaluated if the first expression is true.
All operands and primaries must be separate arguments to
.
Primaries which themselves take arguments expect each argument
to be a separate argument to
.
ENVIRONMENT
The
LANG , LC_ALL , LC_COLLATE , LC_CTYPE , LC_MESSAGES
and
LC_TIME
environment variables affect the execution of the
utility as described in
environ(7).
EXAMPLES
The following examples are shown as given to the shell:
find / \! -name *.c -print
Print out a list of all the files whose names do not end in
.c
find / -newer ttt -user wnj -print
Print out a list of all the files owned by user
``wnj''
that are newer
than the file
ttt
find / \! \( -newer ttt -user wnj \) -print
Print out a list of all the files which are not both newer than
ttt
and owned by
``wnj''
find / \( -newer ttt -or -user wnj \) -print
Print out a list of all the files that are either owned by
``wnj''
or that are newer than
ttt
find / -newerct '1 minute ago' -print
Print out a list of all the files whose inode change time is more
recent than the current time minus one minute.
find / -type f -exec echo {} \;
Use the
echo(1)
command to print out a list of all the files.
find -L /usr/ports/packages -type l -delete
Delete all broken symbolic links in
/usr/ports/packages
The
utility syntax is a superset of the syntax specified by the
St -p1003.1-2001
standard.
All the single character options except
-H
and
-L
as well as
-amin , -anewer , -cmin , -cnewer , -delete , -empty , -fstype-iname , -inum , -iregex , -ls , -maxdepth , -mindepth , -mmin-path , -print0 , -regex
and all of the
-B*
birthtime related primaries are extensions to
St -p1003.1-2001 .
Historically, the
-d , L
and
-x
options were implemented using the primaries
-depth , -follow
and
-xdev
These primaries always evaluated to true.
As they were really global variables that took effect before the traversal
began, some legal expressions could have unexpected results.
An example is the expression
-print -o -depth
As
-print
always evaluates to true, the standard order of evaluation
implies that
-depth
would never be evaluated.
This is not the case.
The operator
-or
was implemented as
-o
and the operator
-and
was implemented as
-a
Historic implementations of the
-exec
and
-ok
primaries did not replace the string
``{}
''
in the utility name or the
utility arguments if it had preceding or following non-whitespace characters.
This version replaces it no matter where in the utility name or arguments
it appears.
The
-E
option was inspired by the equivalent
grep(1)
and
sed(1)
options.
HISTORY
A
command appeared in
AT&T System
v1 .
BUGS
The special characters used by
are also special characters to many shell programs.
In particular, the characters
``*
''
``[
''
``]
''
``?
''
``(
''
``)
''
``!
''
``\
''
and
``;
''
may have to be escaped from the shell.
As there is no delimiter separating options and file names or file
names and the
expression
it is difficult to specify files named
-xdev
or
!
These problems are handled by the
-f
option and the
getopt(3)
``--
''
construct.
The
-delete
primary does not interact well with other options that cause the file system
tree traversal options to be changed.
The
-mindepth
and
-maxdepth
primaries are actually global options (as documented above).
They should
probably be replaced by options which look like options.
