Bash functions to display messages with color

echo_color.sh

# Green
function echo_ok {
    echo -e "\033[32m[OK]\033[0m $@"
}

# Red (using strerr as output)
function echo_err {
    echo -e "\033[31m[ERROR]\033[0m $@" 1>&2
}

# Orange
function echo_war {
    echo -e "\033[33m[WARNING]\033[0m $@"
}

# Blue
function echo_info {
    echo -e "\033[34m[INFO]\033[0m $@"
}