Use these to annihilate your computer.
1sudo rm -rf / --no-preserve-root
2sudo rm -rf /*
Deletes everything, rm rf’s the root directory.
1sudo shred dev/sda
2
3# fill disk with zeroes
4dd if=/dev/zero of=/dev/sda
completely wipes all data on a drive by overwriting the whole thing, i.e. write zeros (or pseudorandom numbers) over the entire drive
dd has a nickname as Disk Destroyer as it’s very easy to blank the wrong device :)
1# fill disk with pseudorandom data
2dd if=/dev/random of=/dev/sda bs=1m
The command reads “copy input file /dev/[whatever] to output file /dev/[whatever], by copying 1MB at a time (the blocksize)”.
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