Windows batch append variable

Connect and share knowledge within a single location that is structured and easy to search. I have a loop in a batch script and I would like to do some arithmetics with the loop counter. I found out how to evaluate expressions, how to add numbers here: Evaluating expressions in windows batch script. You are resetting Result to zero at each step. Move that before the loop. Also, try help set at the cmd prompt for more information on all this. Especially look at the section on delayed environment variable expansion.

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Now, an advanced technique. Using the CALL command allows the batch command processor to expand a variable located on the same line of the script. This can deliver multilevel expansion, by repeated CALL and modifier use.

This is useful in, for example, a FOR loop. As in the following example, where we have a numbered list of variables:. Note that the variable! This is double expansion of the variable i.

Thus it increases to 2 on the 2nd pass through the loop, and to 3 on the 3rd pass. Thus the string echoed to the screen alters with each pass. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Helping communities build their own LTE networks.

Podcast Making Agile work for data science. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related 7. Collectives on Stack Overflow. Learn more. Asked 2 years, 5 months ago. Active 2 years, 5 months ago. Viewed 1k times. Improve this question. Vikas J. Vikas J Vikas J 2 2 gold badges 10 10 silver badges 24 24 bronze badges.

So all your variable names have a trailing space not included when you try to output. Do it like this, 1. Echo Off , 2.

Set finalvalue , 7.