Perl Module Errno

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);