How to uninstall all ruby gems on windows?

Question

How to uninstall all ruby gems on Windows? Is it possible with single command?

Answer 1

Using gem env on your console will provide something like this:

  - GEM PATHS:
    - C:/Users/Luis/Tools/ruby/ruby-1.8.7-p334-i386-mingw32/lib/ruby/gems/1.8

If you browse using Explorer into that directory will find a series of folders that represent all the installed gems (cache, doc, spec, gems)

Remove all of them and it will remove all your gems.

Now, this will not remove any executable script installed by one of these gems. If you installed rake or rails gems, these scripts (as rails and rails.bat will remain in your Ruby bin directory.

You will also need to remove them manually.