If this article appeals to you, here's a few little items that you may find handy (cf. bash(1)): $ shopt -s histappend $ export HISTTIMEFORMAT="%F %T: "

If this article appeals to you, here's a few little items that you may find handy (cf. bash(1)): $ shopt -s histappend $ export HISTTIMEFORMAT="%F %T: " $ export HISTCONTROL=ignoreboth $ export HISTFILESIZE=-1 $ export HISTSIZE=-1 Also, maybe you should consider backing up ~/.bash_history occasionally?