Other AI slipups can be devastating, and if you cruise around the Claude, ChatGPT, or Gemini subreddits long enough, you’ll find tales of woe like this one, often caused by a simple but very powerful command:
rm -rf
That little command strikes fear — or at least, it should strike fear — into the heart of any Linux user. And if you’re using Claude Code or Codex for vibe coding, make no mistake: You’re a Linux user.
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The “rm” stands for “remove,” the standard Linux command for deleting a file. On its own, “rm” can only do so much damage, but when combined with the “-r” (for “recursive”) and “-f” (for “force”) arguments, “rm -rf” can lay waste to a hard drive, nuking a directory, its files, and its subdirectories in seconds.
What makes “rm -rf” really scary is when you – or Claude – use it anywhere in the vicinity of your home directory, as in:
“rm -rf /Users/benpatt/deleteme”
That command should just wipe the “deleteme” subdirectory in my (example) home directory, but were I to accidentally leave out the “/delememe” part, boom! All my home files and folders, gone forever.
An even scarier version of the command is: