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Actually the OP did not ask anything. The perl solution works and I guess the script is meant to be used on Unix machines where the date command lacks the -d, --date option. I used a C program in the good ol' days of IRIX or SUN SPARC for the same reason.
Thnx everyone for the response , I was looking for something that works universally on hpux ,solaris and linux ,the options provided above work on linux mainly and over a leap year I was not sure so I thought it would be better to use something universally valid .
Distribution: Debian /Jessie/Stretch/Sid, Linux Mint DE
Posts: 5,195
Rep:
Yeah, I know. Most people overlook the power of date. I have written fairly complicated Bash scripts using date and time and date is invariably your friend.
However, a few weeks ago someone asked to find the last Sunday in March and the last Sunday in October. That was something date could not do.
#!/usr/bin/perl
use Date::Calc qw(Today Add_Delta_Days);
my ($y,$m,$d) = Add_Delta_Days(Today(),-1);
print "Yesterday was $d-$m-$y\n"'
+1 for smallpond. I agree...the Date::Calc function in Perl is awesome. It even works across years, and calculates leap years automatically. So if you ask it what the date was 5 days ago on January 3, it'll tell you Dec 29th, last year.
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