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Re: /etc/shells management



On Mon, Sep 08, 2003 at 11:11:34AM +0200, Andreas Metzler wrote:
> > I do continue to think that:
> 
> > if [ -n "$var" ]
> 
> > is more readable than
> 
> > if [ "${var+set}" = "set" ]
> 
> I agree, but usually use »[ "x${var}" != "x" ]« for no particular
> reason but the fact that when reading it later I can discern its
> purpose much faster than test -n or just [ "$var" ].

By "readable", I mean exactly "ease of discerning purpose".

My proposed method *is* the idiomatic way of using test(1) to check for
a non-null value.  I don't defend test(1) as a miracle of clarity,
though.  -h is a synonym for -L.  Go figure.  :-/

-- 
G. Branden Robinson                |    To Republicans, limited government
Debian GNU/Linux                   |    means not assisting people they
branden@debian.org                 |    would sooner see shoveled into mass
http://people.debian.org/~branden/ |    graves.          -- Kenneth R. Kahn

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