How to register Ruby environments with pik?

pik add command is used to register your installed ruby environments with pik. For example, I have Ruby 1.9.3, and 2.0.0 installed on my windows, so I used the following in a Command Prompt:

> pik add C:\Ruby193\bin
INFO: Adding:  [ruby-]1.9.3-p392
      Located at:  C:\Ruby193\bin

> pik add C:\Ruby200\bin
INFO: Adding:  [ruby-]2.0.0-p0
      Located at:  C:\Ruby2000\bin

Use the pik list command to list all the ruby interpreters registered with pik:

> pik list
   ruby-1.9.3-p392
   ruby-2.0.0-p0

Make a default Ruby

The pik use command will allow you to switch between your registered ruby interpreters:

> pik use ruby-2.0.0-p0
> ruby -v
ruby 2.0.0p0 (2013-02-024) [i386-mingw32]

Add the –default parameter to set one version as the default:

> pik use ruby-1.9.3-p392 --default

You can use the pik default command to switch to this version:

> pik default
> ruby -v
ruby 1.9.3p392 (2013-02-022) [i386-mingw32]

When you open a command prompt, pik might not automatically loaded, so you will notice that there is no default ruby loaded:

Run the pik default command to load pik or add one particular Ruby interpreter to your user or system PATH environment variable from Control Panel -> System -> Advanced -> Environment Variables