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I need help with subtracting or adding with variables kind of like this
@echo off
set var=5
echo %var%
pause
echo ___________________________________________
set /a %var% +1
echo %var%
Pause
Can you help me?
Posted 6-Nov-12 11:22am
G4mm4R4y1.1K
Comments

Why? do you mean arithmetic subtraction, or what?
--SA
Jaydman2102 12-Nov-12 22:51pm

Well it solved but yes arithmetic I'm almost finished with my RPG that I needed this for but i have another question open holding another problem. Please help me with it if you can.
Sergey Alexandrovich Kryukov 12-Nov-12 23:00pm

Well, I will, if I can. Where is that question?
In the meanwhile, I provided a reference to a very useful batch which you can use to learn batch programming or get reference information. Please see my answer; hope it will help you.
--SA
Jaydman2102 12-Nov-12 23:16pm

Here is the article i posted and ill check out that website. Thanks!
http://www.codeproject.com/Questions/492898/Windowsplusbatchplusclosesplusonpluswrongplusvaria
Sergey Alexandrovich Kryukov 12-Nov-12 23:42pm

I already answered, please see.
--SA

## 2 solutions

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## Solution 1

Probably, I'm guessing at the problem but I assume "it doesn't work".
Try this
```@echo off

echo Testing Set /P and Set /A
set /p NUM1=Enter a number :
set /p NUM2=Enter another number :

set /a RESULT=NUM1+NUM2
echo %NUM1% + %NUM2% = %RESULT%

REM your stuff corrected
set var=5
echo %var%
set /a var=var+1
echo %var%

pause```
Comments
Sergey Alexandrovich Kryukov 12-Nov-12 22:55pm

My 5. The key here is '/a' in 'set', arithmetic operation...
--SA
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## Solution 2

In addition to a correct answer by Alan N:

This wonderful batch script by Rob van der Woude, http://www.robvanderwoude.com[^], with improvements by Johan Parlevliet build a complete help on all batch commands on your system:
http://www.robvanderwoude.com/allhelp.php[^],
http://www.robvanderwoude.com/files/allhelp_nt.txt[^].

Good luck,
—SA

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