find2perl.pdf

(26 KB) Pobierz
Perl version 5.10.0 documentation - find2perl
NAME
find2perl - translate find command lines to Perl code
SYNOPSIS
find2perl [paths] [predicates] | perl
DESCRIPTION
find2perl is a little translator to convert find command lines to equivalent Perl code. The resulting code
is typically faster than running find itself.
"paths" are a set of paths where find2perl will start its searches and "predicates" are taken from the
following list.
! PREDICATE
Negate the sense of the following predicate. The
!
must be passed as a distinct argument, so
it may need to be surrounded by whitespace and/or quoted from interpretation by the shell
using a backslash (just as with using
find(1)).
( PREDICATES )
Group the given PREDICATES. The parentheses must be passed as distinct arguments, so
they may need to be surrounded by whitespace and/or quoted from interpretation by the shell
using a backslash (just as with using
find(1)).
PREDICATE1 PREDICATE2
True if _both_ PREDICATE1 and PREDICATE2 are true; PREDICATE2 is not evaluated if
PREDICATE1 is false.
PREDICATE1 -o PREDICATE2
True if either one of PREDICATE1 or PREDICATE2 is true; PREDICATE2 is not evaluated if
PREDICATE1 is true.
-follow
Follow (dereference) symlinks. The checking of file attributes depends on the position of the
-follow
option. If it precedes the file check option, an
stat
is done which means the file
check applies to the file the symbolic link is pointing to. If
-follow
option follows the file
check option, this now applies to the symbolic link itself, i.e. an
lstat
is done.
-depth
Change directory traversal algorithm from breadth-first to depth-first.
-prune
Do not descend into the directory currently matched.
-xdev
Do not traverse mount points (prunes search at mount-point directories).
-name GLOB
File name matches specified GLOB wildcard pattern. GLOB may need to be quoted to avoid
interpretation by the shell (just as with using
find(1)).
-iname GLOB
Like
-name,
but the match is case insensitive.
-path GLOB
Path name matches specified GLOB wildcard pattern.
http://perldoc.perl.org
Page 1
Perl version 5.10.0 documentation - find2perl
-ipath GLOB
Like
-path,
but the match is case insensitive.
-perm PERM
Low-order 9 bits of permission match octal value PERM.
-perm -PERM
The bits specified in PERM are all set in file's permissions.
-type X
The file's type matches perl's
-X
operator.
-fstype TYPE
Filesystem of current path is of type TYPE (only NFS/non-NFS distinction is implemented).
-user USER
True if USER is owner of file.
-group GROUP
True if file's group is GROUP.
-nouser
True if file's owner is not in password database.
-nogroup
True if file's group is not in group database.
-inum INUM
True file's inode number is INUM.
-links N
True if (hard) link count of file matches N (see below).
-size N
True if file's size matches N (see below) N is normally counted in 512-byte blocks, but a suffix
of "c" specifies that size should be counted in characters (bytes) and a suffix of "k" specifies
that size should be counted in 1024-byte blocks.
-atime N
True if last-access time of file matches N (measured in days) (see below).
-ctime N
True if last-changed time of file's inode matches N (measured in days, see below).
-mtime N
True if last-modified time of file matches N (measured in days, see below).
-newer FILE
True if last-modified time of file matches N.
-print
Print out path of file (always true). If none of
-exec, -ls, -print0,
or
-ok
is specified, then
-print
will be added implicitly.
-print0
Like -print, but terminates with \0 instead of \n.
http://perldoc.perl.org
Page 2
Perl version 5.10.0 documentation - find2perl
-exec OPTIONS ;
exec() the arguments in OPTIONS in a subprocess; any occurrence of {} in OPTIONS will first
be substituted with the path of the current file. Note that the command "rm" has been
special-cased to use perl's unlink() function instead (as an optimization). The
;
must be
passed as a distinct argument, so it may need to be surrounded by whitespace and/or quoted
from interpretation by the shell using a backslash (just as with using
find(1)).
-ok OPTIONS ;
Like -exec, but first prompts user; if user's response does not begin with a y, skip the exec.
The
;
must be passed as a distinct argument, so it may need to be surrounded by whitespace
and/or quoted from interpretation by the shell using a backslash (just as with using
find(1)).
-eval EXPR
Has the perl script eval() the EXPR.
-ls
Simulates
-exec ls -dils {} ;
-tar FILE
Adds current output to tar-format FILE.
-cpio FILE
Adds current output to old-style cpio-format FILE.
-ncpio FILE
Adds current output to "new"-style cpio-format FILE.
Predicates which take a numeric argument N can come in three forms:
* N is prefixed with a +: match values greater than N
* N is prefixed with a -: match values less than N
* N is not prefixed with either + or -: match only values equal to N
SEE ALSO
find
http://perldoc.perl.org
Page 3

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin