.profile

# Add these functions to your .profile to know the git branch, ruby version 
# and the rvm gemset that you are currently using

function bash_git_branch
{
  git branch 2> /dev/null | grep \* | python -c "print '['+raw_input()[2:]+']'" 2> /dev/null
}
function ruby_version 
{
  ruby -v 2> /dev/null | awk '{ print $2}'
}
function rvm_gemset
{
  rvm gemset name 2> /dev/null|awk '{if ($0=="") print ""; else print "@" $0 }' 2> /dev/null 
}

# you can turbocharge your command prompt to display them.
export PS1="\u@\h \w\$(bash_git_branch) r(\$(ruby_version)\$(rvm_gemset)) \$ "