I'm a big fan of set -o vi in bash, and a also of multiple tabbed terminal windows as a way to keep multiple programming/debugging/experimenting contexts active simultaneously.

Nevertheless, it took me almost ten years to take ten minutes to lookup the settings which merge the histories of several terminals in a common file, as opposed to each terminal overwriting the other's history when exiting.

So here it is, mostly as a note to self:

export HISTSIZE=5000 export HISTCONTROL=ignoredups shopt -s histappend

/me is happy with his big "treasure chest" history file...