Bash script color output

colors.sh

#!/bin/bash

DARKGRAY='\033[1;30m'
RED='\033[0;31m'    
LIGHTRED='\033[1;31m'
GREEN='\033[0;32m'    
YELLOW='\033[1;33m'
BLUE='\033[0;34m'    
PURPLE='\033[0;35m'    
LIGHTPURPLE='\033[1;35m'
CYAN='\033[0;36m'    
WHITE='\033[1;37m'
SET='\033[0m'


echo "I ${DARKGRAY}love${SET} github."
echo "I ${RED}love${SET} github."
echo "I ${LIGHTRED}love${SET} github."
echo "I ${GREEN}love${SET} github."
echo "I ${YELLOW}love${SET} github."
echo "I ${BLUE}love${SET} github."
echo "I ${PURPLE}love${SET} github."
echo "I ${LIGHTPURPLE}love${SET} github."
echo "I ${CYAN}love${SET} github."
echo "I ${WHITE}love${SET} github."

In order for the backslash escapes to work with echo, you need to add the -e option after echo and before the string to be echoed.

For example:

echo -e "I ${RED}love${SET} github."

From the echo man page: -e enable interpretation of backslash escapes

Without it, the output is I \033[0;31mlove\033[0m github. for the same line in a normal bash shell. I'm sure this was figured out a long time ago seeing the age of this Gist but I figured I'd put it here for anyone coming across this in the future.