#!/bin/bash
red="\033[31m"
green="\033[32m"
yellow="\033[33m"
color="\033[0m"
check_number(){
expr $num1 + 1 &>/dev/null
if [ $? -ne 0 ];then
echo -e "please input $red number $color"
continue 1
elif [ -z $num1 ];then
echo -e "$yellow Can't be empty $color"
continue 2
elif [ $num1 -gt 59 ];then
echo -e "$green Can't great than 59 $color"
continue 3
fi
}
guess_number(){
if [ $num1 -gt $num ];then
echo -e " $yellow too big $color"
elif [ $num1 -eq $num ];then
echo -e "$green congratulation, you have guessed ! $color"
elif [ $num1 -lt $num ];then
echo -e "$green too small $color"
fi
}
main(){
while true
do
num=$(date +%S)
read -p "please input number 1-59:" num1
check_number
guess_number
done
}
main
