[clug] Favourite shell one liner

[Hal Ashburner]

Hi Clug!

What's your favourite* shell** one liner?

*don't have a favourite? What's the most useful, powerful, cool one you 
remember using recently?
**any shell you like, bash, ash, zsh, csh, tcsh, iPython, even dos (just 
as long as it runs on dosemu on linux or similar and don't mind people 
of taste thinking you're a sick, depraved and twisted so-and-so).

Variants on the emoticon fork-bomb welcomed but won't be tested

/$ :(){:|:&};:/

Hal