((nbr=$RANDOM % 100 + 1)) guess=-1 echo "Find the mystery number (between 1 and 100) !!!" while ((guess != nbr)); do read -p 'Enter a number : ' guess if (( guess < nbr )); then echo "Mystery number is superior to the input number." elif (( guess > nbr )); then echo "Mystery number is inferior to the input number." fi done echo "Congrats ! You found the mystery number !"