Question

I’m trying to get the CMD equivalent of the following bash feature:

$ FOO=foo.bar
$ BAR=bar
$ BAZ=baz
$ echo ${FOO/$BAR/$BAZ}
foo.baz

Now, CMD has somehwat similar command subsitution when both the pattern and the substitution are
constant:

C:\>set FOO=foo.bar
C:\>set BAR=bar
C:\>set BAZ=baz
C:\>echo %FOO:bar=baz%
foo.baz

However, I can’t seem to reference variables in there –

C:\>echo %FOO:%BAR%=%BAZ%%
%foo:bar=baz%

How would I do that? Bonus points for pointing out something that also works inside a FOR loop in a batch file.

Answer 1

The following (batch file) should work and prints “foo.baz”:

  setlocal enabledelayedexpansion
  set FOO=foo.bar
  set BAR=bar
  set BAZ=baz

  echo !FOO:%BAR%:%BAZ%!

(About the FOR-loop thing you mention, you need to give more information on what exactly you mean.)