Andrew P. Lentvorski, Jr. wrote:
>
> On Mar 3, 2005, at 7:08 AM, John H. Robinson, IV wrote:
>
> >in bash:
> >
> >var=$1
> >VAR=${!var-ThisVarNotSet}
> >if [ .$VAR = .ThisVarNotSet ];
> > var=PATH
> > VAR=${!var}
> >fi
>
> Ummm, in what way does:
>
> FOO=${MAYBESET:-${ALWAYSDEFAULT}}
>
> not work in standard sh?
>
> I mean, that one is right from "csh programming considered harmful".
Yes, that works great to know if MAYBESET is set or not, but if MAYBESET
is set to OTHERVAR (MAYBESET=OTHERVAR) and I want to know if OTHERVAR is
set or not. Think of MAYBESET as an indirect variable.
-john
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