Hi hope you intentionally tried to make it obvious that you want a crash course at writing Linux viruses ! »

You should take a look at ttp://www.linux-mag.com/id/5103 "Boot Camp for Wizards, Part Three: Using Standard I/O from shells" you can use named pipes and I/O redirection for IPC. I don't know how Jerry would be able to getdeeper on IPC at the shell level, I guess you'll need a more complete programming language for message passing, queues, semaphores and shared memory . »

Whoever complained about the so called lack of wizardry in the first installment of the series : keep quiet now ! Good work. »