How to concatenate strings in windows batch file for loop?

Question

I\'m familiar with Unix shell scripting, but new to windows scripting.

I have a list of strings containing str1, str2, str3...str10. I want to do like this:

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Answer 1

Try this, with strings:

set "var=string1string2string3"

and with string variables:

set "var=%string1%%string2%%string3%"