Use `shred` to securely remove content from file

[Benjamin-Loison]

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[Benjamin-Loison]

Tracked at Benjamin_Loison/shred/issues/11.

[Benjamin-Loison]

Otherwise can only rely on Benjamin_Loison/linux/issues/22.

[Benjamin-Loison]

Any Linux command to shred a given byte/range/set of bytes of a file would be already a good start.

[Benjamin-Loison]

Could just write the wanted file content without the secret in another file, shred the initial file and rename the new one to the original file name.

It seems overkill for files that do not only contain this secret but other data.

For instance:

ls -lh ~/.bash_history

-rw-rw-r-- 1 benjamin benjamin 5.8M Sep 10 15:30 /home/benjamin/.bash_history

on my Linux Mint 22 Cinnamon Framework 13.

Removing secrets do not happen much so may be fine.

[Benjamin-Loison]

However, if add content to a file containing a secret, then the secret may be written at multiple locations on the disk, no? It seems to make necessary to use a new file when want to add data to a file with a secret, then shred it...