shred
Overwrite files to securely delete data.
More information: https://www.gnu.org/software/coreutils/shred.
shred path/to/file
- Overwrite a file and show progress on the screen:
shred --verbose path/to/file
- Overwrite a file, leaving [z]eros instead of random data:
shred --zero path/to/file
- Overwrite a file a specific [n]umber of times:
shred --iterations 25 path/to/file
- Overwrite a file and remove it:
shred --remove path/to/file
- Overwrite a file 100 times, add a final overwrite with [z]eros, remove the file after overwriting it and show [v]erbose progress on the screen:
shred -vzun 100 path/to/file