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Comment by freedomben | Hacker News Reader

Tangential, but funny story, I once ran that exact command but the . key didn't register, and (out of habit) I hit enter before I was able to notice.

I learned a valuable lesson that day about testing recovery from backups before you need them. I also learned a lesson about only running commands in a root shell when you really need to be root.

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I just don't use rm directly, unless it's something very trivial and non-recursive. Start with ls, write out your path, execute it and check the results. If it looks fine, Ctrl+P → Ctrl+A → Alt+D → rm → Enter. Takes maybe two seconds more than just using rm, and definitely saved me more time over the years.

I have a similar habit. I usually do "echo rm ..." or "echo destructive command ..." first, check the output (so wildcards are expanded, etc), and if I'm happy I bring the command back in the history and edit out the echo.

In bash, you can alternatively replace your shortcuts

    Ctrl+P → Ctrl+A → Alt+D

with `!:1-$`, where 1 is the index of the first argument you want from your previous command.

So:

    ls [files ...]
    rm !:1-$

I personally find it faster to use bash's history expansion. But, we're talking about subsecond differences here.

You can also do:

    $ ls [files ...]
    $ ^ls^rm

I once spent an entire night setting up a new Macbook. Early in the morning, bleary eyed, I cloned a directory to ~/project. I must've quoted it, because it created a directory called "~". Without a thought, I typed `rm -rf ~` and hit enter.

Oops.

To save the rest of us from the same fate, ‘rm -rf /‘ has been disabled by default since coreutils 6.2 in 2006: https://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commi...

My first thought was "this won't work without --no-preserve-root"

Very tangentially related, the last time I nuked a computer it was with FUSE shenanigans. I used a secure temporary directory as the mount point, and the language's destructor effectively did a hidden rm -rf on the contents when I was done with it after the unmount silently failed.

i imagine it's the "we'll laugh at it in a year" kind of funny

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