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shred

Overwrite files to securely delete data. More information: https://www.gnu.org/software/coreutils/shred.

Overwrite a file:

shred {{path/to/file}}

Overwrite a file and show progress on the screen:

shred -v {{path/to/file}}

Overwrite a file, leaving zeros instead of random data:

shred -z {{path/to/file}}

Overwrite a file 25 times:

shred -n25 {{path/to/file}}

Overwrite a file and remove it:

shred -u {{path/to/file}}

Overwrite a file 100 times, add a final overwrite with zeros, remove the file after overwriting it and show progress on the screen:

shred -vzun100 {{path/to/file}}