Write a number guessing game using shell script
A recent guessing game written in shell, including 4 different difficulties, the script is as follows:
#Author: p_Xiao Wang
echo 'Welcome to the number guessing game! '
while true
do
read -p 'Start/Exit (y/n):' x #Prompt the user to enter if [ -z $x ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $x = y ] #Judge user input 'y' then
echo ''
echo 'The game is about to begin'
echo ''
while true
do
sleep 1s #Delay 1s echo 'Please select the difficulty' #Difficulty selection echo ' 1.Simple'
echo ' 2.generally'
echo ' 3.difficulty'
echo ' 4.hell'
echo ' 5.return'
echo ''
read -p 'Please enter the corresponding serial number：' y #Prompt the user to enter if [ -z $y ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $y = 1 ] #Judge the user input ‘1’ is simple then
while true
do
num=$[RANDOM%100+1] # Randomly generate numbers within 100 echo 'Guess a number of 1-100'
n=0 #Define variables while true
do
read -p 'Please enter:' a #Prompt the user to enter let n++ #Count times if [ -z $a ] #Judge user input is empty then
echo 'The input cannot be empty! ' #hint continue
elif [ -n "`echo $a | sed 's#[0-9]##g'`" ] #Judge user input non-digits then
echo 'Please enter a number between 1-100! ' #hint continue
elif [ $a -lt 1 ] || [ $a -gt 100 ] #Judge the number entered by the user is between 1-100 then
echo 'Please enter a number between 1-100! ' #hint continue
elif [ $a -gt $num ] #Judge the number entered by the user is greater than the randomly generated number then
echo 'Guess it big，Guess again！ ' #hint continue
elif [ $a -lt $num ] #Judge the number entered by the user is less than the randomly generated number then
echo 'Guess it's small, guess again! ' #hint continue
else
echo 'Congratulations, you guessed it right, the correct number is'$num #Prompt the user to guess correctly echo 'Guessed' $n 'Second-rate' #Show the number of guesses echo ''
sleep 1s #Delay 1s echo 'Will there be another game？' #Tip whether to play again while true
do
read -p 'y/n:' i #Prompt the user to enter if [ -z $i ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $i = y ] #Judge user input 'y' then
break 2
elif [ $i = n ] #Judge user input 'n' then
break 3
else
echo 'The input was wrong' #hint echo ''
continue
fi
done
fi
done
done
elif [ $y = 2 ] #Judge user input '2' then
while true
do
num=$[RANDOM%1000+1] # Randomly generate numbers within 1000 echo 'Guess a number of 1-1000' #hint n=0 #Define variables while true
do
read -p 'Please enter:' a #Prompt the user to enter let n++ #Number of times if [ -z $a ] #Judge user input then
echo 'The input cannot be empty! ' #hint continue
elif [ -n "`echo $a | sed 's#[0-9]##g'`" ] #Judge user input non-digits then
echo 'Please enter a number between 1-1000! ' #hint continue
elif [ $a -lt 1 ] || [ $a -gt 1000 ] #Judge the user input is between 1-1000 then
echo 'Please enter a number between 1-1000! ' #hint continue
elif [ $a -gt $num ]
then
echo 'Guess it big，Guess again！ ' #hint continue
elif [ $a -lt $num ]
then
echo 'Guess it's small, guess again! ' #hint continue
else
echo 'Congratulations, you guessed it right, the correct number is'$num #Prompt the user to guess correctly echo 'Guessed' $n 'Second-rate' #Show the number of guesses echo ''
sleep 1s #Delay 1s echo 'Will there be another game？' #Tip whether to continue playing while true
do
read -p 'y/n:' i #Prompt the user to enter if [ -z $i ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $i = y ] #Judge user input 'y' then
break 2
elif [ $i = n ] #Judge user input 'n' then
break 3
else
echo 'The input was wrong' #hint echo ''
continue
fi
done
fi
done
done
elif [ $y = 3 ] #Judge user input difficulty then
while true
do
num=$[RANDOM%10000+1] # Randomly generate numbers within 10,000 echo 'Guess a number of 1-10000' #hint n=0 #Define variables while true
do
read -p 'Please enter:' a #Prompt the user to enter let n++ #Number of times if [ -z $a ] #Judge user input is empty then
echo 'The input cannot be empty! ' #hint continue
elif [ -n "`echo $a | sed 's#[0-9]##g'`" ] #Judge user input non-digits then
echo 'Please enter a number between 1-10000! ' #hint continue
elif [ $a -lt 1 ] || [ $a -gt 10000 ] #Determine whether the user input is between 1-10000 then
echo 'Please enter a number between 1-10000! ' #hint continue
elif [ $a -gt $num ] #Judge the number input is greater than the randomly generated number then
echo 'Guess it big，Guess again！ ' #hint continue
elif [ $a -lt $num ] #Judge the input number is less than the randomly generated number then
echo 'Guess it's small, guess again! ' #hint continue
else
echo 'Congratulations, you guessed it right, the correct number is'$num #Prompt the user to guess correctly echo 'Guessed' $n 'Second-rate' #hint echo ''
sleep 1s #Delay 1s echo 'Will there be another game？' #Tip whether to continue playing while true
do
read -p 'y/n:' i #Prompt the user to enter if [ -z $i ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $i = y ] #Judge user input 'y' then
break 2
elif [ $i = n ] #Judge user input 'n' then
break 3
else
echo 'The input was wrong' #hint echo ''
continue
fi
done
fi
done
done
elif [ $y = 4 ] #Judge user input '4' hell then
while true
do
num=$[RANDOM%100000+1] # Randomly generate numbers within 100,000 echo 'Guess a number of 1-100000' #hint n=0 #Define variables while true
do
read -p 'Please enter:' a #Prompt the user to enter let n++ #Number of times if [ -z $a ] #Judge user input is empty then
echo 'The input cannot be empty! ' #hint continue
elif [ -n "`echo $a | sed 's#[0-9]##g'`" ] #Judge user input non-digits then
echo 'Please enter a number between 1-100,000! ' #hint continue
elif [ $a -lt 1 ] || [ $a -gt 100000 ] #Judge user input between 1-100000 then
echo 'Please enter a number between 1-100,000! ' #hint continue
elif [ $a -gt $num ] #Judge the number input is greater than the randomly generated number then
echo 'Guess it big，Guess again！ ' #hint continue
elif [ $a -lt $num ] #Judge the input number is less than the randomly generated number then
echo 'Guess it's small, guess again! ' #hint continue
else
echo 'Congratulations, you guessed it right, the correct number is'$num #Prompt the user to guess correctly echo 'Guessed' $n 'Second-rate' #Show the number of guesses echo ''
sleep 1s #Delay 1s echo 'Will there be another game？' #Tip whether to continue playing while true
do
read -p 'y/n:' i #Prompt the user to enter if [ -z $i ] #Judge user input is empty then
echo 'Can't be empty' #hint echo ''
continue
elif [ $i = y ] #Judge user input 'y' then
break 2
elif [ $i = n ] #Judge user input 'n' then
break 3
else
echo 'The input was wrong' #hint echo ''
continue
fi
done
fi
done
done
elif [ $y = 5 ] #Judge the user's choice to return then
echo ''
break #return else #Judge user input other echo 'The input was wrong' #hint echo ''
continue
fi
done
elif [ $x = n ] #Judge the user to enter ‘n’ to exit then
echo 'The game is about to exit' #hint echo ''
sleep 1s
echo 'Exit successfully！' #hint echo ''
exit 0 #End script else #Judge user input other echo 'The input was wrong' #hint echo ''
continue
fi
done
Note: I have tested it, no bug was detected
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.