For errors installing ruby or gems please check this post answer on stackoverflow.com

1. Add those lines to your .bashrc

   # Aliasses
   if [ -f ~/.bash_aliases ]; then
   . ~/.bash_aliases
   fi

2. Create the file .bash_aliases in the root dicretory and put aliases you want on it. For example:

   # Rubygems
   alias gem='D:/tools/ruby/bin/gem'# Mailcatcher
   alias mc='D:/tools/ruby/bin/mailcatcher.bat'