usr bin env bash Случайное число от до 10 NUMBER RANDOM 10 num_of_att

#!/usr/bin/env bash

# Случайное число от 0 до 10
NUMBER=$(( $RANDOM % 10 ));

num_of_att=${1:-5}

echo "Let's play"
echo "You have $num_of_att attempts to guess the number 0-10"

for ((i = 0; i < num_of_att; i++))
do

	read -p "Enter the number: " INPUT;


	if expr match $INPUT "^[0-9]*$" &>/dev/null
	then
		#	echo "$INPUT";
		echo "random is $NUMBER"
		check=INPUT-NUMBER
		if ((check < 2 && check > -2 && check != 0))
		then
			echo "Hot"
		elif ((check < 3 && check > -3 && check != 0))
		then 
			echo "warm"
		elif ((check == 0))
		then
			echo "BINGO!!!"
			exit;
		else echo "Far away"
		fi
	fi

done

echo "Game over :("
exit 0;