Convert a string to integer in a batch file

Question

I have a variable read from a file:

%var%=13,145

I want to add this value to another value:

set /a %var%=%var%+5

but the result is 13+5, not 13145+5.

How can I delete this "," from my string?

konsolebox · Accepted Answer · 2014-08-07 03:00:09Z

13

Do not add commas.

set var=13145

And also, when assigning a variable, don't place it around %

set /a var=%var% + 5   (Or simply set /a var += 5)

Test:

@echo off
set var=13145
set /a var=%var% + 5
echo %var%

Output:

Update

Another solution is to remove those commas with substitution:

set var=13,145
set /a var=%var:,=% + 5

edited Aug 7, 2014 at 3:00

answered Aug 6, 2014 at 17:47

konsolebox

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2 Comments

Ciprian Vintea Over a year ago

These values are generated by another bat file and I can't modify that file. Your solution is great, it resolves my problem. Thank you a lot.

dbenham Over a year ago

Assuming the comma is not in the value, then you could simply use set /a var+=5. But if the comma is there, then yes, you must remove the comma first.

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