This provides colorful bash interface for debian / ubuntu, tested on Ubuntu Server 12.04.x.Based on http://jbs.io/article/enabling-colorful-bash-debian-squeeze and the actual /etc/bash.bashrc on Ubuntu Server 12.04.2

.bashrc

# System-wide .bashrc file for interactive bash(1) shells.
 
# To enable the settings / commands in this file for login shells as well,
# this file has to be sourced in /etc/profile.
 
# If not running interactively, don't do anything
[ -z "$PS1" ] && return
 
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
 
# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
  debian_chroot=$(cat /etc/debian_chroot)
fi
 
use_color=false
 
# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
[[ -z ${match_lhs}    ]] \
        && type -P dircolors >/dev/null \
        && match_lhs=$(dircolors --print-database)
[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true
 
if ${use_color} ; then
  # Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
  if type -P dircolors >/dev/null ; then
    if [[ -f ~/.dir_colors ]] ; then
      eval $(dircolors -b ~/.dir_colors)
    elif [[ -f /etc/DIR_COLORS ]] ; then
      eval $(dircolors -b /etc/DIR_COLORS)
    fi
  fi
 
  if [[ ${EUID} == 0 ]] ; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
  else
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
  fi
 
  alias ls='ls --color=auto'
  alias grep='grep --colour=auto'
else
  if [[ ${EUID} == 0 ]] ; then
    # show root@ when we don't have colors
    PS1='\u@\h \W \$ '
  else
    PS1='\u@\h \w \$ '
  fi
fi
 
# Try to keep environment pollution down, EPA loves us.
unset use_color safe_term match_lhs
 
# Commented out, don't overwrite xterm -T "title" -n "icontitle" by default.
# If this is an xterm set the title to user@host:dir
#case "$TERM" in
#xterm*|rxvt*)
#    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'
#    ;;
#*)
#    ;;
#esac
 
# enable bash completion in interactive shells
if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
  . /etc/bash_completion
fi

# sudo hint
if [ ! -e "$HOME/.sudo_as_admin_successful" ] && [ ! -e "$HOME/.hushlogin" ] ; then
  case " $(groups) " in *\ admin\ *)
  if [ -x /usr/bin/sudo ]; then
    cat <<-EOF
  To run a command as administrator (user "root"), use "sudo <command>".
  See "man sudo_root" for details.
EOF
  fi
  esac
fi
 
# if the command-not-found package is installed, use it
if [ -x /usr/lib/command-not-found ]; then
  function command_not_found_handle {
    # check because c-n-f could've been removed in the meantime
    if [ -x /usr/lib/command-not-found ]; then
      /usr/bin/python /usr/lib/command-not-found -- "$1"
      return $?
    else
      printf "%s: command not found\n" "$1" >&2
      return 127
    fi
  }
fi

bashrc-gist.sh

#!/bin/bash
if [ -f ~/.bashrc ]
then
  mv ~/.bashrc ~/$(date +%s).bashrc
fi

wget -q "https://gist.github.com/uda/8110123/raw/.bashrc" -O ~/.bashrc

great! thanks for this script.