On Mon, Jun 29, 2009 at 07:10:29PM +0200, Cristian Ionescu-Idbohrn wrote:
>
> Please consider this example script:
>
> ---8<---
> #!/bin/dash
>
> set -e
> #set -x
>
> func() {
> local i=0 v xx="$@"
>
> for v; do
> i=$(($i + 1))
> echo "func arg. $i: '$v'"
> done
> echo "inside func: NOONE_SHOULD_TOUCH_THIS=$NOONE_SHOULD_TOUCH_THIS"
> }
>
> NOONE_SHOULD_TOUCH_THIS=protected
> echo "main, bef. func: NOONE_SHOULD_TOUCH_THIS=$NOONE_SHOULD_TOUCH_THIS"
> func "$@"
> echo "main, aft. func: NOONE_SHOULD_TOUCH_THIS=$NOONE_SHOULD_TOUCH_THIS"
>
> exit 0
> ---8<---
>
> and run the script like this:
>
> $ <script path> abc NOONE_SHOULD_TOUCH_THIS=overwritten
>
> Is it the intended behaviour? Should one be able to overwrite script
> function variables from command line?
As I said, you should be using "$*" instead of "$@" which is
designed exactly for this purpose and is completely portable.
Cheers,
--
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