Hi Dear Monks!I wrote a script to run commands in linux via e-mail/sms.I think that all code is ok... but in 28 line i have error: Use of uninitialized value in numeric lt (<) at cbe.pl line 28. I don't have any idea, what i did wrong. 
#!/usr/bin/perl
use warnings;
use strict;

use Net::POP3;

my $pop = Net::POP3->new('pop3.server') || die("Can't connect");

if(!$pop->login('email@adress.com', 'password')){
die("Can't connect");
}

my $now = '0';

sub check {

        my $last = shift;
        $pop->quit;
        sleep 5;
        $now = $pop->login('email@adress.com', 'password');
                if ( $last < $now){   # <- WRONG
                        my $msg = $pop->get($now);
                        for my $line (@$msg){
                        if( $line =~ /^Subject: `(.*)`/ ){
                                system(`$1`);
                                last
                        }
                        }
                }
        return $now;
}

while (1){
        &check($now);
}

$pop->quit();

[download]
I want to add next function but, this function have to run correctly. Thx

In reply to What is wrong with variable? by w3b

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