Quick Tip: Track Your Bash History
Sometimes, you want to look back in time and see what commands you ran in the past. Thanks to the
history command built into the Linux shell, you can do that with ease.
$ history ... 396 git pull --all 397 git branch -a 398 git push origin :header-revamp 399 git branch -a 400 git push origin :nav-dropdown 401 git branch -d nav-dropdown 402 git fetch -p origin 403 git branch -a 404 git checkout front-page 405 git branch --unset-upstream 406 git checkout develop ...
You can easily search through the output by piping to the
$ history | grep ssh 482 ssh 492 ssh -p xxxx [email protected] 702 ssh -p xxxx [email protected] 770 ssh -p xxxx [email protected] 781 ssh -p xxxx [email protected] 889 ssh [email protected]
If you want to enable a timestamp, you can use the
export command to set the variable and run the command again:
$ export HISTTIMEFORMAT='%F %T' 492 4/9/2017 13:42 ssh -p xxxx [email protected]222.222.22 702 4/11/2017 19:29 ssh -p xxxx [email protected]222.222.22 770 4/12/2017 09:56 ssh -p xxxx [email protected]44.44.44 781 4/12/2017 21:41 ssh -p xxxx [email protected]44.44.44 889 4/13/2017 09:47 ssh root[email protected]45.67.89
HISTTIMEFORMAT can be added to your
.zshrc file, according to your needs, to permanently set the variable. Same goes for how many items you want to save in the history via the
Finally, you can delete your history easily as well:
$ history -c