This post will help you to remove/ disable Bash shell commands history on Linux.
1. Disable history for a current shell.
# set +o history
2. Clean command history.
# history -c
3. Permanently disable bash history.
# echo 'set +o history' >> ~/.bashrc
Next time when user login to the shell it will not store any commands to a history file .bash_history.
To apply this settings immediately for the current shell session execute the .bashrc file:
# . ~/.bashrc
4. Disable a command history system wide:
# echo 'set +o history' >> /etc/profile
It will be effective for the new users created after this.