Add colour to Bash script output. (http://wiki.bash-hackers.org/snipplets/add_color_to_your_scripts)

BashColor.sh

#!/bin/bash

# Colours
ESC_SEQ="\x1b["
COL_RESET=$ESC_SEQ"39;49;00m"
COL_RED=$ESC_SEQ"31;01m"
COL_GREEN=$ESC_SEQ"32;01m"
COL_YELLOW=$ESC_SEQ"33;01m"
COL_BLUE=$ESC_SEQ"34;01m"
COL_MAGENTA=$ESC_SEQ"35;01m"
COL_CYAN=$ESC_SEQ"36;01m"

echo -e "${COL_RED}You can colourize output by adding -e to the echo command and including one of the colour codes we set up"

ls

echo "If you don't use \$COL_RESET then the colour will continue to be used, including output of commands. the output of ls will have been red."

echo -e "${COL_RESET}Now colours have been set back to normal"