bash/sh echo 색상 지정

NC='\033[0m'       # Text Reset
# postfix: B(Bold), U(Underline), BG(background)
# sh example: echo ${RED}RED${NC}
# bash example: echo -e ${RED}RED${NC}
Black='\033[0;30m'        # Black
Red='\033[0;31m'          # Red
Green='\033[0;32m'        # Green
Yellow='\033[0;33m'       # Yellow
Blue='\033[0;34m'         # Blue
Purple='\033[0;35m'       # Purple
Cyan='\033[0;36m'         # Cyan
White='\033[0;37m'        # White

BlackB='\033[1;30m'       # Black
RedB='\033[1;31m'         # Red
GreenB='\033[1;32m'       # Green
YellowB='\033[1;33m'      # Yellow
BlueB='\033[1;34m'        # Blue
PurpleB='\033[1;35m'      # Purple
CyanB='\033[1;36m'        # Cyan
WhiteB='\033[1;37m'       # White
BlackU='\033[4;30m'       # Black
RedU='\033[4;31m'         # Red
GreenU='\033[4;32m'       # Green
YellowU='\033[4;33m'      # Yellow
BlueU='\033[4;34m'        # Blue
PurpleU='\033[4;35m'      # Purple
CyanU='\033[4;36m'        # Cyan
WhiteU='\033[4;37m'       # White
BlackBG='\033[40m'       # Black
RedBG='\033[41m'         # Red
GreenBG='\033[42m'       # Green
YellowBG='\033[43m'      # Yellow
BlueBG='\033[44m'        # Blue
PurpleBG='\033[45m'      # Purple
CyanBG='\033[46m'        # Cyan
WhiteBG='\033[47m'       # White

https://stackoverflow.com/questions/5947742/how-to-change-the-output-color-of-echo-in-linux