On 8/28/20 11:28 AM, Greg Wooledge wrote:
>
> You've got a local variable with the same name as the global variable
> that you're attempting to pass by reference. This will not work.
>
> Namerefs (declare -n) in bash are *not* like uplevel commands in Tcl.
> They cause the referenced variable name to be evaluated just like any
> other variable would be, starting at the current function scope, then
> going up to the caller, and so on.
Namerefs don't change bash's dynamic variable scoping. The two conflict
and make namerefs less useful than they might be.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
