Quick/dirty bash profile for a server

bash_profile.sh

# This file goes in ~/.bash_profile (the tilde is your home directory)

# ALIASES
  # path
    alias     ..="cd .."
    alias    ...="cd ../.."
    alias   ....="cd ../../.."
    alias  .....="cd ../../../.."
    alias ......="cd ../../../../.."

    # NOTE: Delete this if you are using rvm
    # override cd b/c I always want to list dirs after I cd
    # note that this won't work with rvm b/c it overrides cd.
    cd() {
      builtin cd "$@"
      l
    }

  # meta-p and meta-n: "starts with" history searching
  # taken from http://blog.veez.us/the-unix-canon-n-p
  bind '"\ep": history-search-backward'
  bind '"\en": history-search-forward'

# PROMPT
  function parse_git_branch {
    branch=`git rev-parse --abbrev-ref HEAD 2>/dev/null`
    if [ "HEAD" = "$branch" ]; then
      echo "(no branch)"
    else
      echo "$branch"
    fi
  }

  function prompt_segment {
    if [[ ! -z "$1" ]]; then
      echo "\[\033[${2:-37};44m\]${1}\[\033[0m\]"
    fi
  }

  function build_mah_prompt {
    # time
    ps1="$(prompt_segment " \@ ")"

    # cwd with coloured current directory
    # path="$(dirname `pwd`)"
    # dir="$(basename `pwd`)"
    # ps1="${ps1} $(prompt_segment " ${path}/")$(prompt_segment "$dir " 34)"

    # cwd
    ps1="${ps1} $(prompt_segment " \w ")"

    # git branch
    git_branch=`parse_git_branch`
    if [[ ! -z "$git_branch" ]]; then ps1="${ps1} $(prompt_segment " $git_branch " 32)"; fi

    # next line
    ps1="${ps1}\n\$ "

    # output
    PS1="$ps1"
  }

  PROMPT_COMMAND='build_mah_prompt'