Bash RGB

gistfile1.txt

#!/usr/env/bash

rgb()
{
	# takes three values for red, green and blue ranging from
	# 0-5 each and prints the corresponding color escape sequence
	# (formula from http://stackoverflow.com/a/27165165)
	local r="${1:-"0"}"
	local g="${2:-"0"}"
	local b="${3:-"0"}"
	value=$((16 + 36 * $r + 6 * $g + $b))
	echo -e "\e[38;5;"$value"m"
}