From: "G.raud" <graud@gmx.com>
To: dash@vger.kernel.org
Subject: [BUG] ignored substring parameter expansion after $@ ("$@""${v%/*}") command line)
Date: Tue, 26 Sep 2017 05:39:59 +0200 [thread overview]
Message-ID: <20170926033942.z4m5jglztiqjxzda@gmx.com> (raw)
To test that the param susbtitution in "$@""${v%*/}" is ignored (on a
command line or in an assignment):
$ dash -c 'v=1/2; w="$@""${v#*/}"; echo "$@""${v#*/}" "$w"'
Note that the quoting has to be around each variable, that the first has
to be $@ and that the bug occurs with %, %%, #, or ## substring
processing.
Adding a string in between the 2 required vars does not change the
behaviour:
$ dash -c 'v=1/2; echo "$@"s$u"s${v#*/}"'
except by adding a string, even empty, inside the quoting of $@:
$ dash -c 'v=1/2; echo "$a$@""${v#*/}"'
Regards
--
G.raud Meyer
graud@gmx.com
reply other threads:[~2017-09-26 3:40 UTC|newest]
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