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Re: is this coherent?
From: |
Andreas Schwab |
Subject: |
Re: is this coherent? |
Date: |
Thu, 12 Feb 2009 11:04:52 +0100 |
User-agent: |
Gnus/5.110009 (No Gnus v0.9) Emacs/22.3 (gnu/linux) |
Antonio Macchi <antonio_macchi@alice.it> writes:
> $ unset b
>
> $ echo ${!b-a}
> a
Indirection only looks at the PARAMETER part (here: b) of the
substitution. Since b is not set there nothing to indirect through.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
- is this coherent?, Antonio Macchi, 2009/02/12
- Re: is this coherent?,
Andreas Schwab <=