Hi, I am new at perl so any help is appreciated. I am trying to write something along the lines of a date function. Essentially I want to return yesterdays date but I am having problems with my if statements. 
use strict;
use warnings;

###  Date
my ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) = localtime
+();
$year += 1900;
$mday -= 1;
if ($mday == 0)
    {
    $month -= 1;
    }
    if ($month == 1||3||5||7||8||10||12)
        {
        $mday = 31;    
        }
        elsif ($month == 4||6||9||11)
            {
            $mday = 30;
            }
        elsif ($month == 2)
            {
            print "is this a leap year";
            }
    if ($month == 0)
        {
        $year -= 1;
        $month = 12;
        }
print ($sec."\n",$min."\n",$hour."\n",$mday."\n",$month."\n",$year."\n
+",$wday."\n",$yday."\n",$isdst."\n");

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I'm pretty sure the problem will be with my style. I simply cant find whats wrong with it? The output is below 
56
45
11
31
7
2013
5
213
1

[download]
It should read as: 
56
45
11
1
7
2013
5
213
1

[download]

In reply to Date function by Anonymous Monk

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