in reply to Append a tools status to the command line..

This doesn't work in every OS (it does work in Linux, but I think it doesn't work in solaris)... you can set $0, which will influence what you see when you do a ps:
#!/bin/perl -w use strict; my $pr=$0; for(1..10){ $0=$pr." processing $_"; sleep 5; }
when I run this code on my linux box and do a ps -ef to see what # it is currently on in the loop....