$ ./foo.pl 1 1
I am ./foo.pl (1 1)
  PID TTY      STAT   TIME COMMAND
 3717 pts/0    SN+    0:00 /usr/bin/perl ./foo.pl 1 1
I am foo.pl (1)
  PID TTY      STAT   TIME COMMAND
 3719 pts/0    SN+    0:00 bar foo.pl 1