On Mon, May 14, 2007 at 09:13:32AM -0700, Bob McGowan wrote:
> cga2000 wrote:
> >On Fri, May 11, 2007 at 12:33:12PM EDT, Bob McGowan wrote:
> >
> ><snip>
> >
> >> 3. in the parent script, where you use your script, change it to be:
> >>
> >> HTTP_proxy=$(getproxyip)
> >
> >.. you can take it one tiny step further by using an array:
> >
> >. child:
> >
> >cz=($c0 $c1 $c2) /* .. $c4 .. etc. */
> >echo "[EMAIL PROTECTED]"
> >
> >. parent:
> >
> >cz=($(child)) /* note added outer parentheses .. */
> >
> >$p0="${cz[0]}"
> >$p1="${cz[1]}"
> >$p2="${cz[1]}"
> >
> >..
> >
> >I think you need a fairly recent version of bash to do this .. Dunno
> >about other shells.
> >
> >Thanks,
> >cga
> >
> >
>
> Actually, unless you need an array, this is overkill, if the objective
> is to get a series of single values in a series of simple variables (p0
> ... p?).
>
> Assuming these assignments: x=a y=b z=c p=d
>
> echo "[EMAIL PROTECTED]" # where cz is (a b c d), from cz=($x $y $z $p)
>
> and
>
> echo $x $y $z $p
>
> generate the same results.
>
> And you can read data into a series of variables using the 'read' built
> in command:
>
> read x y z p
>
> The only issue being, if you don't have total control on the output of
> the command being read, and it generates more than 4 fields, the 4th to
> last field all get stuffed into p, so in that case you'd want to do:
>
> read x y z p rest
>
> So:
>
> $ echo a b c d | read x y z p
> $ echo $x $y $z $p
> a b c d
what about something like
set -- 1 2 3 4 5 6 7
for x
do
echo $x
done
change 1 2 3 4 5 6 7 for what every number of variables you want ?
>
> And read has been part of Bourne shells for ages, so there's less of a
> backward compatibility problem.
>
> Bob
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