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# 8  
Old 02-13-2015
Corona688: For now perl is the only solution for the setenv i'm searching an other one.

drl: Thank you, that's what i need and in this format 20150212 . I'll try
Code:
setenv TZ CST+24 ; date +%Y%m%d

in my .login Monday because my machine is at work and i'll tell you if it works for me or not.

DGPickett: It's a Solaris and not a GNU so
Code:
date -d

doesn't work.
Last edited by chaima.trimeche; 02-13-2015 at 06:22 PM..
# 9  
Old 02-13-2015
Well, 'date' is just a program file, you can get a Gnu date and call it gdate or by path.

I wrote tm2tm as a more task oriented tool than date, not cluttered with clock setting. It is easy to compile and use. In this case, time input is clock, delta is back one day, format is YYYY-MM-DD:
Code:
$ tm2tm -c -1d '%Y-%m-%d'
2015-02-12
$

Last edited by DGPickett; 02-13-2015 at 06:34 PM..
This User Gave Thanks to DGPickett For This Post:
chaima.trimeche
# 10  
Old 02-13-2015
DGPickett: I can't change the configuration of the client's files. So i have to try other solutions.
Thanks.
# 11  
Old 02-13-2015
You can put gnu date anywhere and call it when you need yesterday, no configuration or other system level change.
# 12  
Old 02-13-2015
Does /usr/sfw/bin on your solaris box have gdate or date?

And. If you cannot change anything at why are you asking for something that implies some kind of code change?
This works on solaris10 and solaris11 - We use it in lots of scripts.
Code:
#!/bin/ksh
# usage /path/to/then.pl 7 for date seven days ago
#          /path/to/then.pl 1  for yesterday
ago()
{
   perl -e ' my $delta = $ARGV[0];
             $delta*=86400;
             $delta=time - $delta;
             @t=localtime( $delta );
             printf("%02d-%02d-%d", $t[4]+1, $t[3], $t[5]+1900); ' $1
}

echo $(ago $1)

# 13  
Old 02-14-2015
Hi,
with awk (work fine between 1901 and 2099):
Code:
awk -F/ '{($3 == 1) ? ($2 == 1) ? $0=$1-1"/12/31" : ($2 == 3) ? (($1 % 4)==0) ? $0=$1"/2/29" : $0=$1"/2/28" : ($2 == 2 || $2 == 4 || $2 == 6 || $2 == 8 || $2 == 9 || $2 == 11) ? $0=$1"/"$2-1"/31" : $0=$1"/"$2-1"/30" : $0=$1"/"$2"/"$3-1 ; printf("%04d%02d%02d\n",$1,$2,$3)}'

and example:
Code:
for i in "2016/03/01" "2015/01/01" "2015/02/01" "2015/03/01" "2015/04/01" "2015/05/01" "2015/06/01" "2015/07/01" "2015/08/01" "2015/09/01" "2015/10/01" "2015/11/01" "2015/12/01"
do
echo $i | awk -F/ '{($3 == 1) ? ($2 == 1) ? $0=$1-1"/12/31" : ($2 == 3) ? (($1 % 4)==0) ? $0=$1"/2/29" : $0=$1"/2/28" : ($2 == 2 || $2 == 4 || $2 == 6 || $2 == 8 || $2 == 9 || $2 == 11) ? $0=$1"/"$2-1"/31" : $0=$1"/"$2-1"/30" : $0=$1"/"$2"/"$3-1 ; printf("%04d%02d%02d\n",$1,$2,$3)}'
done
20160229
20141231
20150131
20150228
20150331
20150430
20150531
20150630
20150731
20150831
20150930
20151031
20151130

Regards.
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