The-Air:~/private/lewis_folder/client$ perl -d wjma.pl

Loading DB routines from perl5db.pl version 1.60
Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(wjma.pl:4):	print "HEY\n";
  DB<1> HEY
The-Air:~/private/lewis_folder/client$