How to run on a directory vs single file?

[christopherpickering]

I'm trying to run on a directory of files, vs just one file, but can't seem to get it to work:

If I have a few files:

templates/one.html templates/two.html templates/three.html

unibeautify --language HTML  -f templates/one.html

works on file one.

If I try any of these

unibeautify --language HTML  -f templates/
unibeautify --language HTML  -f templates/**
unibeautify --language HTML  -f templates/*.html

still only the first file in the folder is formatted.

Is there any way to run on all "*.html" files recursively through my project?

Thanks!