Batch file: How to replace “=” (equal signs) and a string variable?

Question

Besides SED, how can an equal sign be replaced? And how can I use a string variable in string replacement?

Consider this example:

For /F \"tokens=*\"         


        

Answer 1

I just created a simple solution for this myself, maybe it helps someone.

The disadvantage (or advantage, depends on what you want to do) is that multiple equal signs one after another get handled like one single equal sign. (example: "str==ing" gives the same output as "str=ing")

@echo off
set "x=this is=an test="
echo x=%x%

call :replaceEqualSign in x with _
echo x=%x%

pause&exit


:replaceEqualSign in  with 
    setlocal enableDelayedExpansion

        set "_s=!%~2!#"
        set "_r="

        :_replaceEqualSign
            for /F "tokens=1* delims==" %%A in ("%_s%") do (
                if not defined _r ( set "_r=%%A" ) else ( set "_r=%_r%%~4%%A" )
                set "_s=%%B"
            )
        if defined _s goto _replaceEqualSign

    endlocal&set "%~2=%_r:~0,-1%"
exit /B

As you have seen, you use the function like this:

call :replaceEqualSign in variableName with newString