auto ls and open command for ubuntu

.bashrc

# Add RVM to PATH for scripting. Make sure this is the last PATH variable change.
export PATH="$PATH:$HOME/.rvm/bin"

source ~/.rvm/scripts/rvm
alias rs='rake start'

alias open='xdg-open'

#function cd() { builtin cd "$@" && ls -G; }
export ENDCOLOR="\033[00m";
export STARTCOLOR="\033[01;32m";
function cd() { builtin cd "$@" && print "$STARTCOLOR`pwd`$ENDCOLOR" && ls -G; }