How to change the name of an environment variable with a different variable?

Question

Is there a method to name an environment variable dynamically using another environment variable in a batch file?

Something like

numplayers=3
char%numplayer%atk=12 
echo char3atk

with output

Related: Arrays, linked lists and other data structures in cmd.exe (batch) script — aschipfl
– aschipfl, Commented Apr 23, 2018 at 15:35

Compo · Accepted Answer · 2018-04-23 15:53:17Z

4

Given that you are unlikely to know beforehand the number assigned to %numplayers%, here are a few ways you can see the value of the variable:

Set "numplayers=3"
Set "char%numplayers%atk=12"
Call Echo %%char%numplayers%atk%%

Set "numplayers=3"
Set "char%numplayers%atk=12"
Set char%numplayers%atk

SetLocal EnableDelayedExpansion
Set "numplayers=3"
Set "char%numplayers%atk=12"
Echo !char%numplayers%atk!

answered Apr 23, 2018 at 15:53

Compo

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Comments

uri2x · Accepted Answer · 2018-04-23 15:24:47Z

1

It's quite straightforward:

SET numplayers=3
SET char%numplayers%atk=12
ECHO %char3atk%

answered Apr 23, 2018 at 15:24

uri2x

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thank you I just realized i had a space in between the %% thank you for the help.