Removing spaces from a variable in batch

I am writing a file to remove spaces from filenames in a folder and then put the result in a .txt file. I just get a result of "Echo is on." over and over.

This is what I have so far:

@echo ON
SET LOCAL EnableDelayedExpansion
For %%# in (*.*) do (
    SET var=%%~n#
    Set MyVar=%var%
    set MyVar=%MyVar: =%
    echo %MyVar%>>text.txt
)

Can someone tell me whats wrong?

Solution

The reason why you are getting ECHO is on. is because delayed expansion was not used, which caused the value of %var% and %MyVar% to be inserted before the for command is run, and since they were not defined at the start, empty variables were inserted in. When the echo %MyVar%>>text.txt was run, it was interpreted as echo >>text.txt. When echo is run without any arguments, it outputs whether echo is on or off, which is what you get in text.txt.

To fix the problem, you have to do two things:

First, there is something wrong with your second line. There is no space between set and local in setlocal. The second line should be SETLOCAL EnableDelayedExpansion.

Second, to use delayed expansion, you have to replace all %s in each variable with !, like !var! instead of %var%.

End result:

@echo ON
SETLOCAL EnableDelayedExpansion
For %%# in (*.*) do (
    SET var=%%~n#
    Set MyVar=!var!
    set MyVar=!MyVar: =!
    echo !MyVar!>>text.txt
)

You actually do not need to use a temporary variable in this case, you can just do SET MyVar=%%~n# and skip to set MyVar=!MyVar: =!.