Re: Checking if directory is empty in postrm
On Thu, Nov 19, 1998 at 01:47:33AM +0000, Julian Gilbey wrote:
> > However, a new question arises. Will this work in all cases:
> >
> > rmdir $LDIR 2>/dev/null && grep -v $LDIR $LDSOCONF >$tmpfile && mv $tmpfile $LDSOCONF || true
> > rm $tempfile # just in case the mv failed, or grep failed partly
> >
> > Or is there any trap door I miss?
>
> What if you have a directory LDIR=/etc/foo/bar but there is another
> directory called /etc/foo/barbar in $LDSOCONF? Maybe you should
> change the grep command to:
>
> grep -v "^$LDIR\$" $LDSOCONF
>
> so that you match the entire line.
This is a good idea, thanks Julian!
(Although, in this special case, it is unlikely, because I speak about
libc5-compat directories. However, it is always good to stay on the safe
side).
Marcus
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