[net.micro] null as variable in batcg file

fwb@siemens.UUCP (02/11/86)

> Does anyone know how to detect a null as variable input in a batch file?
> Specifically:
>
> foo %1   --how do I detect case where %1 is omitted, thus avoiding
> 	   an error?  I've tried 'if %1=='':goto xx' as well as
> ==' '

Try
	if %1X == X goto null

-----------------------------------------------------
Frederic W. Brehm       (ihnp4!princeton!siemens!fwb)
Siemens Research and Technology Laboratories