2007-05-17, 20:45(-07), BN:
> Greetings
>
> SUN OS 5.10
>
> IF I dont give any arguements to optargs switch it will take the value
> I define
> if I pass an argument to switch, it should take that value:
[...]

You can't have options with optional arguments with getopts.

If -a was to take optional arguments, in

cmd -a -b

Is "-b" another option or an argument to -a.

At http://stchaz.free.fr/ you'll find an implementation of
getopts that support optional arguments to options. In which
case, you have to write it:

cmd -aARG
cmd -a-b
cmd -a

(and there's no way to pass an empty argument).

or

cmd --long=arg
cmd --long

--
Stéphane