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Shell Programming and Scripting
Retun yesterday's date on HP-UX
Post 302508564 by ctsgnb on Monday 28th of March 2011 12:40:46 PM
03-28-2011
Code:
TZ=$(($TZ +24)) date +%Y%m%d
Code:
Uday=`TZ=GMT date +%d` Uhr=`TZ=GMT date +%H` Lday=`date +%d` Lhr=`date +%H` if [ $Lday = $Uday ]; then Offset=`expr $Uhr - $Lhr` else Offset=`expr $Uhr + 24 - $Lhr` fi Diff=`expr 24 + $Offset` echo -n "yesterday was " TZ=GMT+$Diff date +%Y-%m-%d Diff=`expr 24 - $Offset` echo -n "tomorrow will be " TZ=GMT-$Diff date +%Y-%m-%d
Otherwise, you can just get & install the GNU date everywhere
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LEARN ABOUT DEBIAN
mojo::date
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)