This may be going a bit too far, but you could use a dispatch table to do the work for you. It's reusable, and eliminates a whole slew of if/else/elsif statements...

use strict;
use warnings;

my %errors = (
    'input file not found' => sub {
        print "Bloody input file is missing!\n";
    },
    'signing key not found' => sub {
        print "meh, we're screwed!\n";
    },
    'no keys found' => sub {
        print "This doesn't need encrypting anyway...\n";
    }
);

my $program_output3 = '3001:input file not found';

chomp $program_output3;           # chomp any newline
$program_output3 =~ s/^\d+://;    # remove the digits/colon

$errors{lc $program_output3}->(); # lowercase, just in case

[download]

Output:

Bloody input file is missing!

[download]

In reply to Re: Perl 5.10.1 - compare external program output with a list of known error codes by stevieb
in thread Perl 5.10.1 - compare external program output with a list of known error codes by malokam

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