[Lynx-dev] shell stuff

[Thorsten Glaser]

Hi,

while scrolling through a diff to see if I can find the cause
of a regression, I saw this (pasting only one example of it):

source="`echo "$source" | sed -e 's%/$%%'`/"

You m̲u̲s̲t̲ ̲n̲o̲t̲ use double quotes both outside and inside of an
old-style command substitution: some shells pair them as
"`echo " and " | sed -e 's%/$%%'`/" instead of nesting, and
POSIX actively allows that.

Since you never need to quote a command substitution in scalar
context (assignment RHS), this can be easily fixed:

source=`echo "$source" | sed -e 's%/$%%'`/

Can you not use source=${source%/}/ ? (Depends on where you
want to run that script; I know BOW’s /bin/sh fails on that
hard.)

And you might even want:

source=`echo "$source" | sed -e 's%/*/$%%'`/

bye,
//mirabilos
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