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Top Forums UNIX for Dummies Questions & Answers Subtract -1 from a date in Unix script Post 302370985 by thegeek on Friday 13th of November 2009 04:38:19 AM
Old 11-13-2009
if that is a PERL script, you can use Date::Manip, or Date::Calc .


if you want that to be done from a current date, then you can do it simply with GNU date command, as

Code:
$ date --date='1 day ago'
Thu Nov 12 15:07:46 IST 2009
$ date
Fri Nov 13 15:07:53 IST 2009

 

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Date::Calc::XS(3pm)                                     User Contributed Perl Documentation                                    Date::Calc::XS(3pm)

NAME
Date::Calc::XS - XS wrapper and C library plug-in for Date::Calc SYNOPSIS
You never use this module directly. Use Date::Calc(3) instead! DESCRIPTION
You never use this module directly. Use Date::Calc(3) instead! SEE ALSO
Date::Calc(3), Date::Calc::PP(3). VERSION
This man page documents "Date::Calc::XS" version 6.3. AUTHOR
Steffen Beyer mailto:STBEY@cpan.org http://www.engelschall.com/u/sb/download/ COPYRIGHT
Copyright (c) 1995 - 2012 by Steffen Beyer. All rights reserved. LICENSE
This package is free software; you can use, modify and redistribute it under the same terms as Perl itself, i.e., at your option, under the terms either of the "Artistic License" or the "GNU General Public License". The C library at the core of the module "Date::Calc::XS" can, at your discretion, also be used, modified and redistributed under the terms of the "GNU Library General Public License". Please refer to the files "Artistic.txt", "GNU_GPL.txt" and "GNU_LGPL.txt" in the "license" subdirectory of this distribution for any details! DISCLAIMER
This package is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the "GNU General Public License" for more details. perl v5.14.2 2012-05-17 Date::Calc::XS(3pm)
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