On 07/26/2010 07:50 PM, Peng Yu wrote: > Hi, > > The variable f keeps the last value when the for loop is finished. Is > there a way to declare it as a local variable, so that it disappears > after for-loop is finished? (I could unset it, but I want to know if > it can be a local variable) > > $ for f in a b; do echo $f; done > a > b > $ echo $f > b
Local variables can only be used in functions - ergo, the answer to your
question is to wrap the for loop in a function:
$ func () {
local f
for f; do
echo $f
done
}
$ f=1; func a b; echo $f
a
b
1
--
Eric Blake ebl...@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
