I thought that this bug report would be about the behaviour of which
if PATH is unset, but this is not true.
A clean fix for this unfilled bug would require “getconf PATH” (getconf
is in libc6-bin) to return the PATH bash and dash use, and ideally the
other shells to adapt.
* Justin Pryzby [2005-02-14 15:49 -0500]:
> On Mon, Feb 14, 2005 at 09:31:50PM +0100, Thomas Hood wrote:
> > On Sun, 2005-02-13 at 09:59 -0500, Justin Pryzby wrote:
> > > On Sun, Feb 13, 2005 at 12:14:43PM +0100, Thomas Hood wrote:
> > > > To canonicalize a path use "readlink -f". E.g.,
> > > As requested, it wouldn't follow symlink names.
> >
> > jdthood@thanatos:/tmp/w$ ls -l
> > total 0
> > lrwxr-xr-x 1 jdthood jdthood 4 2005-02-14 21:30 usr -> /usr
> > jdthood@thanatos:/tmp/w$ realpath -s //tmp//w//usr
> > /tmp/w/usr
> >
> >
> > You should be able to use something like:
> >
> > dpkg -S $(realpath -s $(which foo))
> I think sed also provides that functionality, as does Bash, I'm sure.
> Since I don't want it to follow symlinks, I think the only
> canonicalization needed is s+//+/+g.
ELEMENT=${ELEMENT%/} would be sufficient to solve the original issue,
i.e., remove the final slash of /usr/sbin/ if $PATH matches
“*:/usr/sbin/:*”.
Whether this is a good idea is an other question, and Clint already
wrote that he doesn't think so.
Carsten
