Date: Mon, 7 Jul 2003 00:46:26 -0700 From: Luigi Rizzo <rizzo@icir.org> To: hackers@freebsd.org Subject: hints on shell string expansion ? Message-ID: <20030707004626.B56037@xorpc.icir.org>
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Hi, i need a bit of help from creative /bin/sh users... I am writing a script to generate ipfw test cases, and as part of the script i need to generate 'actions' which can be either one or more, e.g. a1="allow" a2="deny log" a3="pipe 10" Now, this works: for act in "$a1" "$a2" "$a3"; do echo "add $act ip from 1.2.3.4 to 5.6.7.8" done but i because the string of actions is used in several places, I would love to find a way to group actions into a single variable and then write something like this actions="allow 'deny log' 'pipe 10'" for act in $actions ; do echo "add $act ip from 1.2.3.4 to 5.6.7.8" done I have tried to play tricks with quotes and backquotes, backslashes, eval, etc. but no methods helped. Any ideas ? cheers luigi
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