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Top Forums Shell Programming and Scripting Cron job - Need to run Cron every quarter at particular time Post 302926596 by derekludwig on Tuesday 25th of November 2014 11:13:24 AM
Old 11-25-2014
For the first:
Code:
0 8 1 * * [[ `date +%a` != @(Sat|Sun) ]] && command
0 8 2,3 * * [[ `date +%a` == Mon ]] && command

(adjust weekday names for your locale)

For the second:
Code:
0 7 25 1,4,7,10 * [[ `date +%a` != Sun ]] && command
0 7 26 1,4,7,10 * [[ `date +%a` == Mon ]] && command

Please be aware that cron assumes the system is always running.

Last edited by derekludwig; 11-25-2014 at 12:16 PM.. Reason: RudiC has a better month selector, and cut-n-pasting. Grr
These 3 Users Gave Thanks to derekludwig For This Post:
 

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Mojo::Date(3pm) 					User Contributed Perl Documentation					   Mojo::Date(3pm)

NAME
Mojo::Date - HTTP 1.1 date container SYNOPSIS
use Mojo::Date; my $date = Mojo::Date->new(784111777); my $http_date = $date->to_string; $date->parse('Sun, 06 Nov 1994 08:49:37 GMT'); my $epoch = $date->epoch; DESCRIPTION
Mojo::Date implements HTTP 1.1 date and time functions according to RFC 2616. Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123 Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036 Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format ATTRIBUTES
Mojo::Date implements the following attributes. "epoch" my $epoch = $date->epoch; $date = $date->epoch(784111777); Epoch seconds. METHODS
Mojo::Date inherits all methods from Mojo::Base and implements the following new ones. "new" my $date = Mojo::Date->new; my $date = Mojo::Date->new($string); Construct a new Mojo::Date object. "parse" $date = $date->parse('Sun Nov 6 08:49:37 1994'); Parse date in one of the following formats. - Epoch format(784111777) - RFC 822/1123 (Sun, 06 Nov 1994 08:49:37 GMT) - RFC 850/1036 (Sunday, 06-Nov-94 08:49:37 GMT) - ANSI C asctime() (Sun Nov 6 08:49:37 1994) "to_string" my $string = $date->to_string; Render date suitable for HTTP 1.1 messages. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::Date(3pm)
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