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Full Discussion: Leap year K-shell script
Top Forums UNIX for Dummies Questions & Answers Leap year K-shell script Post 302259632 by curleb on Tuesday 18th of November 2008 02:13:51 PM
Old 11-18-2008
yeah, I know it's an old thread, but I found this useful and I just wanted to post this one. Squirrel this away in your script, or even your .profile, and then let the system do it for you with a simple call to leap():

Code:
function leap 
{
#  This function tells you if the argument is a leap year or not... 
if [[ $(cal ${1:-$(date '+%Y')} |egrep "^[ 0-9][0-9]| [ 0-9][0-9]$" |wc -w) -eq 365 ]] 
then 
        Leap_YN='N' 
else
        Leap_YN='Y'
fi && print ${Leap_YN} 
}


Last edited by curleb; 01-30-2009 at 11:15 AM..
 

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DateTime::LeapSecond(3) 				User Contributed Perl Documentation				   DateTime::LeapSecond(3)

NAME
DateTime::LeapSecond - leap seconds table and utilities VERSION
version 1.06 SYNOPSIS
use DateTime; use DateTime::LeapSecond; print "Leap seconds between years 1990 and 2000 are "; print DateTime::Leapsecond::leap_seconds( $utc_rd_2000 ) - DateTime::Leapsecond::leap_seconds( $utc_rd_1990 ); DESCRIPTION
This module is used to calculate leap seconds for a given Rata Die day. It is used when DateTime.pm cannot compile the XS version of this code. This library is known to be accurate for dates until December 2009. There are no leap seconds before 1972, because that's the year this system was implemented. o leap_seconds( $rd ) Returns the number of accumulated leap seconds for a given day, in the range 0 .. 22. o extra_seconds( $rd ) Returns the number of leap seconds for a given day, in the range -2 .. 2. o day_length( $rd ) Returns the number of seconds for a given day, in the range 86398 .. 86402. SEE ALSO
<http://hpiers.obspm.fr/eop-pc/earthor/utc/leapsecond.html> http://datetime.perl.org AUTHOR
Dave Rolsky <autarch@urth.org> COPYRIGHT AND LICENSE
This software is Copyright (c) 2013 by Dave Rolsky. This is free software, licensed under: The Artistic License 2.0 (GPL Compatible) perl v5.18.2 2017-10-06 DateTime::LeapSecond(3)
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