phpman > perldoc > File::Touch(3pm)

NAME
    File::Touch - update file access and modification times, optionally creating files if needed

SYNOPSIS
     use File::Touch 0.12;
     @file_list = ('one.txt','../two.doc');
     $count = touch(@file_list);

     use File::Touch;
     $reference_file = '/etc/passwd';
     $touch_obj = File::Touch->new(
                      reference => $reference_file,
                      no_create => 1
                  );
     @file_list = ('one.txt','../two.doc');
     $count     = $touch_obj->touch(@file_list);

DESCRIPTION
    This module provides both a functional and OO interface for changing the file access and
    modification times on files. It can optionally create the file for you, if it doesn't exist.

    Note: you should specify a minimum version of 0.12, as per the SYNOPSIS, as that fixed an issue
    that affected systems that have sub-second granularity on those file times.

    Here's a list of arguments that can be used with the object-oriented contruction:

    atime_only => [0|1]
        If nonzero, change only the access time of files. Default is zero.

    mtime_only => [0|1]
        If nonzero, change only the modification time of files. Default is zero.

    no_create => [0|1]
        If nonzero, do not create new files. Default is zero.

    reference => $reference_file
        If defined, use timestamps from this file instead of current time. The timestamps are read
        from the reference file when the object is created, not when "<-"touch>> is invoked. Default
        is undefined.

    time => $time
        If defined, then this value will be used for both access time and modification time,
        whichever of those are set. This time is overridden by the "atime" and "mtime" arguments, if
        you use them.

    atime => $time
        If defined, use this time (in epoch seconds) instead of current time for access time.

    mtime => $time
        If defined, use this time (in epoch seconds) instead of current time for modification time.

Examples
  Update access and modification times, creating nonexistent files
     use File::Touch;
     my @files = ('one','two','three');
     my $count = touch(@files);
     print "$count files updated\n";

  Set access time forward, leave modification time unchanged
     use File::Touch;
     my @files = ('one','two','three');
     my $day = 24*60*60;
     my $time = time() + 30 * $day;
     my $ref = File::Touch->new( atime_only => 1, time => $time );
     my $count = $ref->touch(@files);
     print "$count files updated\n";

  Set modification time back, update access time, do not create nonexistent files
     use File::Touch;
     my @files = ('one','two','three');
     my $day = 24*60*60;
     my $time = time() - 30 * $day;
     my $ref = File::Touch->new( mtime => $time, no_create => 1 );
     my $count = $ref->touch(@files);
     print "$count files updated\n";

  Make a change to a file, keeping its timestamps unchanged
     use File::Touch;
     my $date_restorer = File::Touch->new(reference => $file);
     # Update the contents of $file here.
     $date_restorer->touch($file);

REPOSITORY
    <https://github.com/neilb/File-Touch>

AUTHOR
    Nigel Wetters Gourlay (nwetters AT cpan.org)

COPYRIGHT
    Copyright (c) 2001,2007,2009 Nigel Wetters Gourlay. All Rights Reserved. This module is free
    software. It may be used, redistributed and/or modified under the same terms as Perl itself.