Quit Bash Shell Without Saving Bash History (5 Methods)

Sometimes it is very useful to delete / remove Bash history partially or completely when log out. Here is my favourite methods howto log out / quit / exit Bash shell without saving Bash history.

Remove Only Current Session Bash History and Leave Older History Untouched

1. Quit Bash Shell Without Saving History: Unset HISTFILE

unset HISTFILE && exit

2. Quit Bash Shell Without Saving History: Kill Console

kill -9 $$

Remove/Delete Bash History Completely

3. Quit Bash Shell Without Saving History: Clear History Option

history -c && exit

4. Quit Bash Shell Without Saving History: Set HISTSIZE to 0 (zero)

HISTSIZE=0 && exit

5. Quit Bash Shell Without Saving History: Delete HISTFILE and Unset HISTFILE

rm -f $HISTFILE && unset HISTFILE && exit

If you want make these commands more permanent then these commands could be added on ~/.bash_logout file or used with aliases.