Perl Module Errno

Published on 30 Nov 2007
Tags #Perl

This module provides a variable containing the results for all known error constants:

Import:
```
use Errno qw(:POSIX);
```
Imports POSIX error constants from error.h
Makes %! magic

Example:

my $fh;
if (not open($fh, 'test')) {
    my $message = 'unknown error';

    if ($!{'ENOENT'}) {
        $message = 'no such file or directory';
    }

    die $message . "n";
}
close($fh);