In DOS scripting, there is no length function defined for finding the length of a string. There are custom-defined functions which can be used for the same. Following is an example of a custom-defined function for seeing the length of a string.
@echo off set str = Hello World call :strLen str strlen echo String is %strlen% characters long exit /b :strLen setlocal enabledelayedexpansion :strLen_Loop if not "!%1:~%len%!"=="" set /A len+=1 & goto :strLen_Loop (endlocal & set %2=%len%) goto :eof
A few key things to keep in mind about the above program are −
The actual code which finds the length of string is defined in the :strLen block.
The length of the string is maintained in the variable len.
The above command produces the following output.