The bash history command on Linux systems helps with remembering commands you’ve previously run and repeating those commands without having to retype them.
You could decide, however, that you’d be just as happy to forget that you referenced a dozen man pages, listed your files every 10 minutes or viewed previously run commands by typing “history”. This linked post looks at how you can get the history command to remember just what you want it to remember and forget commands that are likely to be of little "historic value".
The bash shell’s history command in Linux makes it easy to review and reuse commands, but there’s a lot you do to control how much it remembers and how much forgets.