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  1. or download this
    root@geedorah:~# perl foo.pl 
    eval error - ''
    lock says: 0 but true
    unlock says: 0 but true
    
  2. or download this
    included by eval at (eval 1) line 2.
    eval error - ''
    lock says: UNDEFINED - Invalid argument
    unlock says: 0 but true
    
  3. or download this
    #!/usr/bin/perl -w
    use strict;
    use Fcntl qw(:DEFAULT :seek);
    ...
                    die "Cannot release lock I don't hold for $version!";
            }
    }
    
  4. or download this
    root@geedorah:~# perl -V
  5. or download this
    Summary of my perl5 (revision 5 version 10 subversion 1) configuration
    +:
       
    ...
        /usr/local/lib/site_perl
        .
    root@geedorah:~#