Custom greeting message for Bash based console

PS1="\[\033[1;37m\][\[\033[32m\]\u\[\033[37m\]: \[\033[34m\]\w\[\033[37m\]] >\[\033[00m\] "
WEEKDAY=$(date +%A)
MONTH=$(date +%B)
DAY=$(date +%d)

K=$(expr ${DAY} % 10)

if [ $DAY -ge 11 ] && [ $DAY -le 13 ]; then
    DAY="${DAY}th"
else
    if [ $K -eq 1 ]; then
        DAY="${DAY}st"
    elif [ $K -eq 2 ]; then
        DAY="${DAY}nd"
    elif [ $K -eq 3 ]; then
        DAY="${DAY}rd"
    else
        DAY="${DAY}th"
    fi
fi

if [ "${DAY:0:1}" == "0" ]; then
    DAY="${DAY:1}"
fi

echo -e "\033[1m`figlet -f smslant $(lsb_release -si -sr)`\033[0m" | sed -e 's/^/ /' | lolcat
echo " Welcome back, $USER! Today is $WEEKDAY, $DAY of $MONTH." | lolcat
echo ""