file::touch(3pm) [debian man page]

Touch(3pm)						User Contributed Perl Documentation						Touch(3pm)

NAME

       File::Touch - update access and modification timestamps, creating nonexistent files where necessary.

SYNOPSIS

	use File::Touch;
	@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

       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. Default is undefined.

       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
";

   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
";

   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
";

AUTHOR

       Nigel Wetters Gourlay (nwetters@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.

perl v5.10.0							    2009-07-25								Touch(3pm)

TOUCH(1)							   User Commands							  TOUCH(1)

NAME

       touch - change file timestamps

SYNOPSIS

       touch [OPTION]... FILE...

DESCRIPTION

       Update the access and modification times of each FILE to the current time.

       A FILE argument that does not exist is created empty.

       A FILE argument string of - is handled specially and causes touch to change the times of the file associated with standard output.

       Mandatory arguments to long options are mandatory for short options too.

       -a     change only the access time

       -c, --no-create
	      do not create any files

       -d, --date=STRING
	      parse STRING and use it instead of current time

       -f     (ignored)

       -m     change only the modification time

       -r, --reference=FILE
	      use this file's times instead of current time

       -t STAMP
	      use [[CC]YY]MMDDhhmm[.ss] instead of current time

       --time=WORD
	      change the specified time: WORD is access, atime, or use: equivalent to -a WORD is modify or mtime: equivalent to -m

       --help display this help and exit

       --version
	      output version information and exit

       Note that the -d and -t options accept different time-date formats.

DATE STRING

       The  --date=STRING is a mostly free format human readable date string such as "Sun, 29 Feb 2004 16:21:42 -0800" or "2004-02-29 16:21:42" or
       even "next Thursday".  A date string may contain items indicating calendar date, time of day, time zone, day of week, relative time,  rela-
       tive  date,  and numbers.  An empty string indicates the beginning of the day.  The date string format is more complex than is easily docu-
       mented here but is fully described in the info documentation.

AUTHOR

       Written by Paul Rubin, Arnold Robbins, Jim Kingdon, David MacKenzie, and Randy Smith.

REPORTING BUGS

       Report touch bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT

       Copyright (C) 2009 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The full documentation for touch is maintained as a Texinfo manual.  If the info and touch programs are properly installed  at  your  site,
       the command

	      info coreutils 'touch invocation'

       should give you access to the complete manual.

GNU coreutils 7.1						     July 2010								  TOUCH(1)