#$a gt $b $a sorts alphabetically after $b #$a le $b $a sorts alphabetically before $b #$a eq $b $a is the same as $b #$a ne $b $a is not the same as $b #!/usr/bin/perl use warnings; use strict; my $password = "password"; print "Enter the password: "; my $guess = ; chomp $guess; if ($password eq $guess) { print "Pass, friend.\n"; } if ($password ne $guess) { die "Go away, imposter!\n"; }