Please i need a help in bash script (linux) ,if im allowed just to use nested ifs, i want to take numbers from user and each number will execute some statements; allowed inputs are 20,30,40. if the inputs entered were different then we should print a message "wrong number" and ask for entering again a number that is allowed. if the input is 20 then it will execute : echo "20989" if the input is 30 then it will execute3 : echo "90999" if the input is 40 then it will execute : echo "40909 "
Hello guys,
Please i need a help in bash script (linux) ,if im allowed just to use nested ifs, i want to take numbers from user and each number will execute some statements; allowed inputs are 20,30,40. if the inputs entered were different then we should print a message "wrong number" and ask for entering again a number that is allowed.
if the input is 20 then it will execute : echo "20989"
if the input is 30 then it will execute3 : echo "90999"
if the input is 40 then it will execute : echo "40909 "
Bash Script:
while true
do
echo "Enter a number"
read num
if [ $num -eq 20 ]
then
echo "20989"
return
elif [ $num -eq 30 ]
then
echo "90999"
return
elif [ $num -eq 40 ]
then
echo "40909"
return
else
echo "wrong number"
fi
done
Screenshot of output:
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