Bash Scripting Multiplication table - bash

Question

Hello I am wondering if anyone can help me :
I try to make a multiplication table for my daughter, I don't know how to make it. This is how I want to look :
1 x 1 = ? answer
if the answer is true then go to the next one
1 x 2 = ?
but if the answer is false then ask again 1 x 1 = ?
until the answer is Correct.
#!/bin/bash
# Multiplication table
echo " --== Multiplication Table ==-- "
sleep 2
echo " Lesson 1"
sleep 1
echo ""
echo -n "1 x 1 = ? " ; read opt
if [ "$opt" = 1 ]
then
echo "Correct!"
else
echo "Wrong!"
fi
sleep 1
echo ""
echo -n "1 x 2 = ? " ; read opt
if [ "$opt" = 2 ]
then
echo "Correct!"
else
echo "Wrong!"
fi
After the exercise is done until 10. Then show a result of how many correct answers has and how many Wrong.
Example:
Lesson 1 is finish you have 9 correct answers and 1 wrong answer !

Answer 1

You can use this script:
#!/bin/bash
# Multiplication table
echo " --== Multiplication Table ==-- "
sleep 2
echo " Lesson $1"
sleep 1
echo ""
wrong=0
correct=0
for i in {1..10}
do
while true
do
echo -n "$1 x $i = ? " ; read opt
if [ $opt = $(( $1 * $i )) ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
done
echo "Lesson $1 is finish you have $correct correct answers and $wrong wrong answer!"
You can run it with different params for any base. Such as ./script 5 for multiplication with 5.

Answer 2

I made it. This is how I want to look like and work
#!/bin/bash
# Multiplication table
echo " --== Multiplication Table ==-- "
sleep 2
echo " Lesson 1"
sleep 1
echo ""
while true
do
echo -n "1 x 1 = ? " ; read opt
if [ $opt = 1 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 2 = ? " ; read opt
if [ $opt = 2 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 3 = ? " ; read opt
if [ $opt = 3 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 4 = ? " ; read opt
if [ $opt = 4 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 5 = ? " ; read opt
if [ $opt = 5 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 6 = ? " ; read opt
if [ $opt = 6 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 7 = ? " ; read opt
if [ $opt = 7 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 8 = ? " ; read opt
if [ $opt = 8 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 9 = ? " ; read opt
if [ $opt = 9 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
while true
do
echo -n "1 x 10 = ? " ; read opt
if [ $opt = 10 ]
then
(( correct++ ))
echo "Correct!"
break
else
(( wrong++ ))
echo "Wrong!"
fi
done
echo "Lesson 1 is finish you have $correct correct answers and $wrong wrong answer!"

Answer 3

#!/bin/bash
#######multiplication table#########
INPUT_NUMBER=$1
if [[ $# -ne 1 ]]; then
echo "please enter at least 1 number"
exit 1
fi
if [[ ! ${INPUT_NUMBER} =~ [[:digit:]] ]];then
echo "Incorrect usage, wrong type args"
echo "Usage is $0 <number>"
exit 1
fi
for i in {1..10}
do
echo "${INPUT_NUMBER} * ${i} = $((${INPUT_NUMBER} * ${i}))"
done