Computer Chat Batch Programming
 

Could anybody explain me why this batch script for DoS under WinXP is not working and variable n dosn't get correct values.
Code:
set y=
set n=
set m=
for /L %%y in (2007,1,2008) do (
echo year %%y
for /L %%m in (1,1,2) do (
set /A "n = %%m + 1"
echo thismonth %%m nextmonth %%n
)
)
Could you just save it as some.bat on your system and test it?