Tuning bash colors

rc/bash-prompt.sh

@@ -1,24 +1,20 @@
-#!/usr/bin/env bash
+# Inspired by
+# https://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/
+# https://linux.101hacks.com/ps1-examples/prompt-color-using-tput/
 
-function get_color()
-{
-  local color="$1"
-  echo "\[$(tput setaf "$color")\]"
-}
-
-readonly RED=$(get_color 1)
-readonly GREEN=$(get_color 2)
-readonly CYAN=$(get_color 6)
-readonly END_COLOR='\[\033[00m\]'
+RED=$(tput setaf 1)
+GREEN=$(tput setaf 2)
+CYAN=$(tput setaf 6)
+COLOR_RESET=$(tput sgr0)
 
 function get_ps1_prompt()
 {
   local username='\u'
   local hostname='\h'
-  local working_directory='\w'
+  local workdir='\w'
   local user_type='\$'
 
-  echo "${debian_chroot:+($debian_chroot)}${GREEN}${username}@${hostname}${END_COLOR}:${CYAN}${working_directory}${END_COLOR}${user_type} "
+  echo "${debian_chroot:+($debian_chroot)}${GREEN}${username}@${hostname}${COLOR_RESET}:${CYAN}${workdir}${COLOR_RESET}${user_type} "
 }
 
 function set_ps1_prompt()