What's the easiest way to prevent dangerous commands matching a pattern (like rm) from going into the Bash command history? I'd like to keep them away from the history of the current session, not just from the .bash_history file.
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3Like unix.stackexchange.com/q/32460/117549 ?– Jeff Schaller ♦Apr 23, 2019 at 14:57
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Thank you. I followed some links from that page and cobbled together an answer below.– LassiApr 23, 2019 at 16:42
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1 Answer
OK, seems there have been a few somewhat similar questions. The answer is to use:
export HISTIGNORE="rm*"
(It seems to be using glob syntax, and multiple patterns can be given by separating with colons :)
Another way is to set:
export HISTCONTROL=ignorespace
which will cause Bash to keep all commands starting with a space out of the history. So if you can get into the habit of typing space-rm-whatever this will work fine.
To keep both space-commands and duplicate commands out of the history, you can do:
export HISTCONTROL=ignoreboth
It's also possible to use both HISTIGNORE and HISTCONTROL.