Re: rm(1) bug, possibly serious

* Oliver Fromme <olli@xxxxxxxxxxxxxxxxx> [2007-09-25 19:43 +0200]:
By the way, an additional confusion is that ".." and "../"
are handled differently. Specifying ".." always leads to
this message:

rm: "." and ".." may not be removed

and nothing is actually removed. It is confusing that
adding a slash leads to a different error message _and_
removal of the contents of the parent directory. Clearly
a POLA violation.

Adding a slash often leads to different behaviour.

nicolas@pc5 ~/rd> mkdir foo; ln -s foo bar
nicolas@pc5 ~/rd> rm -r bar
nicolas@pc5 ~/rd> ls -l
total 2
drwxr-xr-x 2 nicolas wheel 512 Sep 25 20:55 foo/
nicolas@pc5 ~/rd>

nicolas@pc5 ~/rd> mkdir foo; ln -s foo bar
nicolas@pc5 ~/rd> rm -r bar/
nicolas@pc5 ~/rd> ls -l
total 0
lrwxr-xr-x 1 nicolas wheel 3 Sep 25 20:56 bar@ -> foo
nicolas@pc5 ~/rd>

And cp -R behaves differently for dir and dir/, too, but it is
explicitly documented there.

Nicolas

--
http://www.rachinsky.de/nicolas
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