peter@hermes:~/src/Perl/test> perl myscript.pl 
This is mySub, foo!
So far so good...
Perl can't read.
Can't open(GLOB(0x9cc7d8), <, nonexistentfile.txt): No such file or directory at (eval 3) line 4.
        main::__ANON__('GLOB(0x9cc7d8)', '<', 'nonexistentfile.txt') called at myscript.pl line 22