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Date: Tue, 09 Sep 2014 07:01:06 -0600
From: Eric Blake <eblake@redhat.com>
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To: cygwin@cygwin.com
Subject: Re: latest cygwin: 'run' problem
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On 09/09/2014 03:15 AM, Achim Gratz wrote:

>=20
> If you want to get this right, you should work it out from the inside.
> You want the cd command to get a directory name from a subcommand that
> may contain spaces, so you need to quote the result:
>=20
> cd "$( ... )"
>=20

If you want to also guarantee that you can change to a relative
directory whose name begins with a -, you need:

cd -- "$( ... )"

> Since the argument you're getting may actually be a filename, you need
> to use the dirname command and quote its argument again:
>=20
> cd "$(/bin/dirname "$(...)")"

Again, if you have the possibility of a relative directory name that
might begin with dash,

cd -- "$(/bin/dirname -- "$(...)")"

>=20
> and dirname gets its argument from cygpath, and the argument to cygpath
> must itself be quoted again:
>=20
> cd "$("$(/bin/dirname "$(/bin/cygpath -u "$1")")")"

Ah - you are using cygpath, which can guarantee an absolute name (and
therefore avoid an argument beginning with dash).

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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