sudo rm -rf /
and enter your password when it asks to.
NO, DON'T DO THIS!
i just wanted to make that clear BEFORE anyone makes you wipe your disk clean.
i don't know whether you're a joke or not, asking for 'hacks in terminal'. it's plainly naive. you might end up reinstalling everything from scratch if you follow a line like the one given up there. it'd erase all on all of your volumes. without asking you whether you want that.
and giving out your icq # and GSM number... it's a *bit* too much. you might end up getting lots of advertisement. or worse things, of course.
Mac user since 1987. Running Mac OS X 10.8 Mountain Lion on a MacBook Air 11" & an iMac 27" and whatever's newest for my iPhone 4s, iPad 3 and AppleTV 2.
Apple Certified System Administrator 10.6, Apple Sales Professional 2008-2011, Apple Certified Mac Technician.