How to find last sunday (date) using perl? Post: 302170723

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Top Forums UNIX for Dummies Questions & Answers How to find last sunday (date) using perl? Post 302170723 by joeyg on Tuesday 26th of February 2008 02:39:18 PM

02-26-2008

Registered User

One solution

Here is the script
($dow is the variable for day-of-week, stored at location [6] from localtime)

Code:

> cat sunday
#!/usr/bin/perl

# start of Perl
# Program to find previous Sunday date
#
# use strict;

 $today = date(time);
 $weekend = date2(time);

# start of subroutine date MM-DD-YYYY
sub date 
{
     my($time) = @_;     # incoming parameters

     @when = localtime($time);
     $dow=$when[6];
     $when[5]+=1900;
     $when[4]++;
     $date = $when[4] . "-" . $when[3] . "-" . $when[5];

     return $date;
}

# start of subroutine date2 MM-DD-YYYY
sub date2
{
     my($time) = @_;     # incoming parameters

     $offset = 0;
     $offset = 60*60*24*$dow;
     @when = localtime($time - $offset);
     $when[5]+=1900;
     $when[4]++;
     $date = $when[4] . "-" . $when[3] . "-" . $when[5];

     return $date;
}

print "$today \n";
print "$dow \n";
print "$weekend \n";

Here is the output

Code:

> sunday
2-26-2008 
2 
2-24-2008

joeyg

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LEARN ABOUT DEBIAN

iso8601

PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME

       Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

       iso8601 command [output modifier]

DESCRIPTION

       iso8601 - Display and parse ISO8601 dates and times

OPTIONS

       -?, --help
	      This text

       -$, --version
	      Version information

       -V, --verbose
	      Increase debug output

   Commands:
       -n, --now
	      Display the current date/time

       -d, --date=value
	      Parse an ISO8601 date/time.  Eg. '2005-01-20 00:30:00 +01:00' or '2005-040'

       -p, --period=value
	      Parse an ISO8601 date/time with interval/period (wth start time).  Eg. '2005-040/2005-043'

       -D, --duration=value
	      Parse an ISO8601 date/time with duration (wth start time). Eg. '2005-040/P1M'

   Output Modifiers:
       -L, --local
	      Show result as a 'local' date/time

       -O, --ordinal
	      Show result as an 'ordinal' date/time

       -W, --week
	      Show result as an 'calendar week' date/time

       For more information on the ISO8601 standard, see: http://en.wikipedia.org/wiki/ISO_8601

AUTHOR

       Written by Andrew Beekhof

REPORTING BUGS

       Report bugs to pacemaker@oss.clusterlabs.org

Pacemaker 1.1.7 						    April 2012							      PACEMAKER(8)