factorialsh 2 the factorial of 2 is 2 factorialsh 4 the fa

$ ./factorial.sh   2

the factorial of 2 is 2

$ ./factorial.sh   4

the factorial of 4 is 24

$ ./factorial.sh 5

the factorial of 4 is 120

Writing in Ubuntu terminal. Need help. Thank you

Solution

#!/bin/bash
# testing the REPLY environment variable

read -p \"Enter a number: \"
factorial=1
for((count = 1;count<=$REPLY ;count++))
do
    factorial=$[ $factorial * $count ]
done
echo \"The factorial of $REPLY is $factorial\"