Date: Tue, 18 Feb 2003 12:39:22 +0100 From: Poul-Henning Kamp <phk@phk.freebsd.dk> To: current@freebsd.org Subject: Shell programming 101: Is this an expr(1) bug ? Message-ID: <57374.1045568362@critter.freebsd.dk>
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Running: #!/bin/sh set -ex for p in ad2 ad0 ad1 do a0=`expr $p : '^ad\([0-9]\)$'` done I get: syv# sh _ + expr ad2 : ^ad\([0-9]\)$ + a0=2 + expr ad0 : ^ad\([0-9]\)$ + a0=0 syv# echo $? 1 syv# That looks like a bug to me... -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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