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From: Poor Yorick
Subject: (no subject)
Date: Mon, 31 Jul 2006 09:46:18 -0700

The following command does not echo "hello".

: ${FAKEVAR?} || echo hello

This seems inconsistent, since the return status is set to 1.  It would be a 
convenient and concise syntax for acting on unset variables.

Poor Yorick

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