ZERO SECTOR s0 sector_number This will zero out (delete all of the data) on one of your owned sectors. This action is not reversible, so if you want a backup of your sectors first, make one. This is effectively the same as the command dd if=/dev/zero of=/floppy bs=512 count=1 seek=sector_number However, note that users do not have direct write access to the disk, so they must use the s0 command to zero out their cached sector files first before the changes are applied. (This is to prevent anyone from overwriting the entire disk). If you *really* want to zero out more than one sector without confirmation, here are some examples on how to do so: EXAMPLE ONE: Delete sectors x, y, and z: for i in (x y z); do yes | s0 $i; done EXAMPLE TWO: Delete sectors a-z: for i in {a..z}; do yes | s0 $i; done EXAMPLE THREE: Delete sectors a-c and x-z: for i in {a..z} {x..z}; do yes | s0 $i; done NOTE: Please DO NOT delete the files in your ~/sector directory! They are symbolic links to your owned sectors in /usr/local/share/sectors. If you DO end up deleting one by accident, run the command `repop-sectors` to repopulate your sector directory.