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batch-filevariablesstring-length

Getting length of a variable in batch

Suppose I write this batch code to make a variable

set var1=test

Now how would I get the length of this variable and echo it?

Solution

  • If you echo the variable to a file and then get the length of the file, you can subtract 2 characters because of invisible characters.

    echo %var1%> length.txt
for %%? in (length.txt) do ( set /a length=%%~z? - 2 )

    Then your length should be in a variable called "length"