terminal-logo-smallSometimes 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.