-x
       -x directory
            tells Perl that the program is embedded in a larger chunk of unrelated ASCII text, such as in a mail message.  Leading garbage will be discarded until the first line that starts
            with #! and contains the string "perl".  Any meaningful switches on that line will be applied.  If a directory name is specified, Perl will switch to that directory before running
            the program.  The -x switch controls only the disposal of leading garbage.  The program must be terminated with "__END__" if there is trailing garbage to be ignored (the program
            can process any or all of the trailing garbage via the DATA filehandle if desired).

##</code><code>##

cducdsgcsdcyvdsctydwcfvsc
rubbish
.....
more rubbish...
blah blah blah

#!/usr/bin/perl -w
use strict;
print "Hello World\n";

__END__
more garbage here ignored.

##</code><code>##

darren@barney:~/perlmonks$ perl -x garbage.pl
Hello World