You probably know about using the up and down arrow keys to scroll through your Bash history, but did you know that there’s a lot more to Bash history than just repeating commands? There is much more to the story. Or, should that be much more to the history? In either case, the history command is one of those obscure commands that is powerful and handy to know on at least a basic level. This article will take the mystery out of Bash history to make it a more friendly sysadmin tool.