Probaj da ubacis ispis u fajl za taj cron job da vidis gde je problem.
Mislim da ce nesto ovako da upali:
M * * * * /putanja/perl_fajl > /putanja/log_dir/log.log 2>&1
Pa posle pogledaj sta pise u log-fajlu.
"The most likely way for the world to be destroyed, most experts agree, is by accident. That's where we come in; we're computer professionals. We cause accidents." - Nathaniel Borenstein