Shell Productivity Tips and Tricks
> If you want to remove a sensitive command from your history, you can simply edit your $HISTFILE history file and remove it.It’s already too late at this point. Anybody on your machine can read the commands you are running, for example with ps. You should instinctively avoid entering anything in plaintext into a terminal which you don’t want other people to see. Any command line tool worth its salt will provide alternative ways of passing secrets (using configuration files for example).