this post was submitted on 22 Jan 2024
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source ~/.bash_history
Dear god
That's the scariest horror story in 2 words I've seen so far
I'm genuinely having a chuckle at how shocked people are at my submission, made my day xD
I mean, it's simple, elegant, and destructive AF given the right circumstances. Basically a chaos grenade we didn't realize existed
And also a very understandable mistake, to boot.
Can a linux noob get an explanation of this?
source
is a bash shell built-in command that executes the content of the file passed as argument, in the current shell.~/.bash_history
contains all the commands you ever executed in bash (the default shell in most Linux systems)To add on to this explanation, you generally use
source ~/.bashrc
to reload your shell whenever you want to make changes to your user config. Tab completion weakens the barrier to destruction significantly (esp. in my case)Until you use a system that doesn't have a ~/.bashrc , and now your tab completion helpfully expands "~/.ba[TAB]" to "~/.bash_history" .
That's why I like fish, which shows matching commands you executed, so that you can easily redo them.
Ooh can I get an equivalent for zsh? :D
https://github.com/zsh-users/zsh-autosuggestions
Thanks for the explanation
Reminded me of this: https://github.com/jtroo/kanata/issues/595
Same concept, different granularity!
New fear unlocked
i never thought i had a nuke that i can launch using one command
"Oh My..." thought in a George Takei voice
Oh no. That fits the bill perfectly lol.
Jesus Christ. It would be a good idea to format that file to have an
exit
as first line to avoid this