use Date::Simple qw/today/;
use 5.010;

my $d = today;
my $month = $d->month;
$d-- while $month == $d->month;
say $d;

[download]

Or 

use Date::Simple qw/today ymd/;
use 5.010;

my $d = today;
$d = ymd($d->year, $d->month, 1) - 1;
say $d;

[download]
Perl 6 - the future is here, just unevenly distributed

In reply to Re: How to find the last date of the previous month? by moritz
in thread How to find the last date of the previous month? by MrSnrub

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