Having a shell function's variable changes reflected in its caller really
kinda makes me shudder - in fact, it reminds me of gosub. It seems like
a bug waiting to happen; I'm amazed I haven't been bitten by it yet.
It occurred to me that this might help - but of course it's probably
quite a bit slower:
#!/bin/sh
function fn
{(
variable=2
)}
variable=1
fn
echo $variable
Is there a better way today?
Wouldn't it be a valuable feature to add to a shell interpreter on shopt
or something, to have all shell functions create local variables rather
than global by default?
Followups directed to comp.unix.shell.
