Echos the message in a color given by the first argument.

ccho.sh

# Echos the message in a color given by the first argument.
#
# Example:
#
#   % ccho red "This is red"
#
#   Outputs "This is red" in red
#
# The following colors are supported
#   red|r - RED
#   green|g - GREEN
#   yellow|y - YELLOW
#   blue|b - BLUE
#   purple|p - PURPLE
#   cyan|c - CYAN
#   white|w - WHITE;
#   lgray|l - LIGHT GRAY
#   lred|l - LIGHT RED
#   lgreen|l - LIGHT GREEN
#   lyellow|l - LIGHT YELLOW
#   lblue|l - LIGHT BLUE
#   lpurple|l - LIGHT PURPLE
#   lcyan|l - LIGHT CYAN
#
function ccho()
{
    local RESTORE='\033[0m'
    
    local RED='\033[00;31m'
    local GREEN='\033[00;32m'
    local YELLOW='\033[00;33m'
    local BLUE='\033[00;34m'
    local PURPLE='\033[00;35m'
    local CYAN='\033[00;36m'
    
    local LGRAY='\033[00;37m'
    local LRED='\033[01;31m'
    local LGREEN='\033[01;32m'
    local LYELLOW='\033[01;33m'
    local LBLUE='\033[01;34m'
    local LPURPLE='\033[01;35m'
    local LCYAN='\033[01;36m'
    local WHITE='\033[01;37m'

    color_arg=$1
    shift
    
    if [[ x$color_arg = x ]]; then
  echo "Usage $(basename $0) <color> <string>+"
	return 1
    fi

    color_arg_lowercase=$(echo $color_arg | tr '[:upper:]' '[:lower:]')

    case $color_arg_lowercase in
	red|r) color=$RED;;
	green|g) color=$GREEN;;
	yellow|y) color=$YELLOW;;
	blue|b) color=$BLUE;;
	purple|p) color=$PURPLE;;
	cyan|c) color=$CYAN;;
	white|w) color=$WHITE;; 
	lgray|lg) color=$LGRAY;;
	lred|lr) color=$LRED;;
	lgreen|lg) color=$LGREEN;;
	lyellow|ly) color=$LYELLOW;;
	lblue|lb) color=$LBLUE;;
	lpurple|lp) color=$LPURPLE;;
	lcyan|lc) color=$LCYAN;;
    esac

    if [[ x$color = x ]]; then
	echo "Invalid color $color_arg"
	return 2
    fi

    echo -en "$color"
    echo "$@"
    echo -en $RESTORE
}