tie my @x, 'MyTie';

For all exercises: no fork/exec/system/qx/open, no commandline options, no user input, no modules, no tie, no bless, no %SIG.

I guess the first and most important exercise is reading.

Juerd # { site => 'juerd.nl', plp_site => 'plp.juerd.nl', do_not_use => 'spamtrap' }