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Shell Programming and Scripting
Manipulation of Date in Shell
Post 302157551 by jnanesh.b on Friday 11th of January 2008 07:33:18 AM
01-11-2008
Manipulation of Date in Shell
Reuirement:
I have a set of files ina diectory which has the name in format "WWW-YYYYmmDD"
like, WWW-20070226. for 26th FEB 2007.
Now I need to write a shell script which should move the files to directory named "old" in the same directory if date attached to file is 90 days prior to today's date.
Now can you please tell me how to extract the date from the file name & how to come to conclusion that the difference is 90 days?
One approach I am thinking of is:
Converting both the dates to epoch & then comparing epochs has difference of 90 days (90*24*60*60) or not?
But again, the thing is how to convert the 'extracted date' & 'today's date' to epoch?
If anybody is thinking of different aproach, please respond...
I have a set of files ina diectory which has the name in format "WWW-YYYYmmDD"
like, WWW-20070226. for 26th FEB 2007.
Now I need to write a shell script which should move the files to directory named "old" in the same directory if date attached to file is 90 days prior to today's date.
Now can you please tell me how to extract the date from the file name & how to come to conclusion that the difference is 90 days?
One approach I am thinking of is:
Converting both the dates to epoch & then comparing epochs has difference of 90 days (90*24*60*60) or not?
But again, the thing is how to convert the 'extracted date' & 'today's date' to epoch?
If anybody is thinking of different aproach, please respond...
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LEARN ABOUT OSX
cpanplus::shell
CPANPLUS::Shell(3pm) Perl Programmers Reference Guide CPANPLUS::Shell(3pm) NAME
CPANPLUS::Shell - base class for CPANPLUS shells SYNOPSIS
use CPANPLUS::Shell; # load the shell indicated by your # config -- defaults to # CPANPLUS::Shell::Default use CPANPLUS::Shell qw[Classic] # load CPANPLUS::Shell::Classic; my $ui = CPANPLUS::Shell->new(); my $name = $ui->which; # Find out what shell you loaded $ui->shell; # run the ui shell DESCRIPTION
This module is the generic loading (and base class) for all "CPANPLUS" shells. Through this module you can load any installed "CPANPLUS" shell. Just about all the functionality is provided by the shell that you have loaded, and not by this class (which merely functions as a generic loading class), so please consult the documentation of your shell of choice. BUG REPORTS
Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>. AUTHOR
This module by Jos Boumans <kane@cpan.org>. COPYRIGHT
The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved. This library is free software; you may redistribute and/or modify it under the same terms as Perl itself. SEE ALSO
CPANPLUS::Shell::Default, CPANPLUS::Shell::Classic, cpanp perl v5.16.2 2012-10-11 CPANPLUS::Shell(3pm)