POSIX::1003::FS - POSIX for the file-system
POSIX::1003::FS is a POSIX::1003
use POSIX::1003::FS qw(access R_OK); if(access($fn, R_OK)) # $fn is readible? use POSIX::1003::FS qw(mkfifo); use Fcntl ':mode'; mkfifo($path, S_IRUSR|S_IWUSR) or die $!; # Absorbed from Unix::Mknod use POSIX::1003::FS qw(mknod major minor makedev); use File::stat my $st = stat '/dev/null'; my $major = major $st->rdev; my $minor = minor $st->rdev; mknod '/tmp/special', S_IFCHR|0600, makedev($major,$minor+1);
You may also need POSIX::1003::Pathconf.
Read man filetest before you start using this function! Use the *_OK constants for FLAGS.
man filetest
*_OK
Like chown(), but does not follow symlinks when encountered. Returns the number of files successfully changed.
chown()
Warning, POSIX uses different parameter order:
# POSIX specification: # int lchown(const char *path, uid_t owner, gid_t group); # Perl core implementation: my $successes = chown($uid, $gid, @filenames); use POSIX; POSIX::lchown($uid, $gid, $filename) or die $!; use POSIX::1003::FS 'lchown'; my @successes = lchown($uid, $gid, @filenames);
Create a special device node on PATH. Useful symbols for MODE can be collected from Fcntl (import tag :mode). The DEVICE number is a combination from the type (major number), a sequence number and usage information (combined in a minor number).
:mode
Simply CORE::utime()
CORE::utime()
Warning, POSIX.pm uses a different parameter order than core.
POSIX.pm
POSIX::utime($filename, $atime, $mtime); CORE::utime($atime, $mtime, @filenames);
Combine MAJOR and MINOR into a single DEVICE number.
my $device = (stat $filename)[6]; my $device_type = major $device; my $sequence_nr = minor $device; my $device = makedev $major, $minor; mknod $specialfile, $mode, $device;
The following constants are exported, shown here with the values discovered during installation of this module:
The constant names for this math module are inserted here during installation.
This module is part of POSIX-1003 distribution version 0.08, built on December 29, 2011. Website: http://perl.overmeer.net. The code is based on POSIX, which is released with Perl itself.
Copyrights of the perl code and the related documentation by 2011 by Mark Overmeer. For other contributors see ChangeLog.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html
To install POSIX::1003, copy and paste the appropriate command in to your terminal.
cpanm
cpanm POSIX::1003
CPAN shell
perl -MCPAN -e shell install POSIX::1003
For more information on module installation, please visit the detailed CPAN module installation guide.