bug#27864: [request] safety to prevent `rm -rf ~`

[Reuti]

Hi,

> Am 28.07.2017 um 18:28 schrieb R0b0t1 <address@hidden>:
> 
> I recently had a script create a file named "~" when I passed it a
> value for an installation directory.

Most likely as the input was taken literally and not expanded.


> Without thinking the next command
> I typed was the one in the title. Luckily this was not my main
> computer and was a virtual machine.
> 
> It does not seem likely a user will ever intentionally type `rm -rf
> ~`. Deletion of home directories usually takes place as another user.
> Most of the arguments used for the addition of --no-preserve-roots and
> the `rm -rf /` safeties also seem to apply in this case, as just as
> one could erroneously type `rm -rf / directory` one could type `rm -rf
> ~ /directory` (or even the impressive yet redundant `rm -rf ~ /
> directory`).

Doesn't the Bash expand ~ with /home/your_user or whatever was set as home 
directory? The `rm` will never see the plain ~, unless one writes ./~ or alike.

-- Reuti