gem of ruby.
tips and tricks i have used.
In many case i usually dont want to install GEM globally.
I simply update my .gemrc file with following value.
<note important>If it does not work try with hardcoded path instead $HOME</note>
gemhome: $HOME/gems gempath: - $HOME/gems - /usr/local/lib/ruby/gems/1.8 gem: --user_install