bash-prompt-color

#!/usr/bin/env bash -i

#ref. https://blog.bigdinosaur.org/easy-ps1-colors/
#ref. https://stackoverflow.com/a/5716557/248616
#ref. https://www.cyberciti.biz/faq/bash-shell-change-the-color-of-my-shell-prompt-under-linux-or-unix/

echo "
#            color code                      color code bold
#            ----------------                ----------------
   ps1_BLACK='\[\033[0;30m\]'    b_ps1_BLACK='\[\033[1;30m\]'
     ps1_RED='\[\033[0;31m\]'      b_ps1_RED='\[\033[1;31m\]'
   ps1_GREEN='\[\033[0;32m\]'    b_ps1_GREEN='\[\033[1;32m\]'
  ps1_YELLOW='\[\033[0;33m\]'   b_ps1_YELLOW='\[\033[1;33m\]'
    ps1_BLUE='\[\033[0;34m\]'     b_ps1_BLUE='\[\033[1;34m\]'
  ps1_PURPLE='\[\033[0;35m\]'   b_ps1_PURPLE='\[\033[1;35m\]'
    ps1_CYAN='\[\033[0;36m\]'     b_ps1_CYAN='\[\033[1;36m\]'
   ps1_WHITE='\[\033[0;37m\]'    b_ps1_WHITE='\[\033[1;37m\]'
"

PS1_COLOR_END='\[\033[00m\]'

_PS1="$PS1" # save current PS1

bold=0
for color in {30..37}; do
  ps1_color="\[\033[$bold;${color}m\]"
  new_PS1="export PS1='$ps1_color\u@\h$PS1_COLOR_END <-- this color is defined by above command \\$ ' "
  echo $new_PS1
done
echo; echo "export PS1='$_PS1'"; echo

echo 'echo ------------------------------------------------------------------------------------------'; echo

bold=1
for color in {30..37}; do
  ps1_color="\[\033[$bold;${color}m\]"
  new_PS1="export PS1='$ps1_color\u@\h$PS1_COLOR_END <-- this color is defined by above command \\$ ' "
  echo $new_PS1
done
echo; echo "export PS1='$_PS1'"; echo