Bash Prompt

bash_prompt.sh

. /etc/bashrc  # Pull in the update_terminal_cwd() function.
export PROMPT_COMMAND="prompt_cmd; update_terminal_cwd"
function prompt_cmd {

    # Must be obtained early before any other commands run and exit!
    EXITSTATUS="$?"

    # regular colors
    local K="\[\033[0;30m\]"    # black
    local R="\[\033[0;31m\]"    # red
    local G="\[\033[0;32m\]"    # green
    local Y="\[\033[0;33m\]"    # yellow
    local B="\[\033[0;34m\]"    # blue
    local M="\[\033[0;35m\]"    # magenta
    local C="\[\033[0;36m\]"    # cyan
    local W="\[\033[0;37m\]"    # white

    # empahsized (bolded) colors
    local EMK="\[\033[1;30m\]"
    local EMR="\[\033[1;31m\]"
    local EMG="\[\033[1;32m\]"
    local EMY="\[\033[1;33m\]"
    local EMB="\[\033[1;34m\]"
    local EMM="\[\033[1;35m\]"
    local EMC="\[\033[1;36m\]"
    local EMW="\[\033[1;37m\]"

    # background colors
    local BGK="\[\033[40m\]"
    local BGR="\[\033[41m\]"
    local BGG="\[\033[42m\]"
    local BGY="\[\033[43m\]"
    local BGB="\[\033[44m\]"
    local BGM="\[\033[45m\]"
    local BGC="\[\033[46m\]"
    local BGW="\[\033[47m\]"

    # unsets color to term's fg color
    local BOLD="\[\033[1m\]"    
    local NONE="\[\033[0m\]"    

    # Set the username color based on whether it's root
    UC=$W                 # user's color
    [ $UID -eq "0" ] && UC=$R   # root's color

    # Set the Terminal's title
    #PS1='\[\e]1;\s\$ \W\a\e]2;\u@\h\a\]'"$PS1"
    TITLEBAR='\[\e]0;\u@\h\a\]'

    # Set the prompt symbol color based on exit status of last command
    GIT_BRANCH="$( __git_ps1 " (${Y}%s${NONE})" )"
    PROMPT="${TITLEBAR}${EMW}[${NONE}${UC}\u${NONE}@${G}\h${NONE}:${C}\W${NONE}${EMW}]${NONE}${GIT_BRANCH}"
    
    if [ "${EXITSTATUS}" -eq "0" ]
    then
       PS1="${PROMPT} (${G}${EXITSTATUS}${NONE})\$ "
    else
       PS1="${PROMPT} (${EMR}${EXITSTATUS}${NONE})\$ "
    fi
    
    PS2="${BOLD}>${NONE} "
}