Windows Batch Files: if else

Question

I\'m doing a simple batch file that requires one argument (you can provide more, but I ignore them).

For testing, this is what I have so far.

if not          


        

Answer 1

An alternative would be to set a variable, and check whether it is defined:

SET ARG=%1
IF DEFINED ARG (echo "It is defined: %1") ELSE (echo "%%1 is not defined")

Unfortunately, using %1 directly with DEFINED doesn't work.