Let's write a shell script to find the factorial of a number. 1. Get a number. 2. Use for loop or while loop to compute the factorial by using the below formula. 3. fact (n) = n * n-1 * n-2 * .. 1. 4. Display the result. fact= 1. while [ $num -gt 1 ] do fact=$((fact * num)) #fact = fact * num num=$((num - 1)) #num = num - 1 done echo $fact.

Sep 1, 2021 · Method 3: using do-while loop. Get a number; Use do-while loop to compute the factorial by using the below formula; fact(n) = n * n-1 * n-2 * .. 1; Display the result. Below is the Implementation using a while loop.

Feb 26, 2016 · Use a loop to process each of the arguments. #!/bin/bash while [ $# -gt 0 ] do n=$1 on=$n fact=1 while [ $n -ge 1 ] do fact=$(expr $fact \* $n) n=$(expr $n - 1) done echo "The factorial of $on is $fact" shift # go to the next argument done

A shell script to calculate the factorial of input number using while loop. Shell #!/bin/bash # A shell script to find the factorial of a number read -p "Enter a number" num fact=1 while [ $num -gt 1 ] do fact=$((fact*num)) num=$((num-1)) done echo $fact

Here is a recursive function in Bash: if (($1 == 1)) then. echo 1. return. else. echo $(( $( factorial $(($1 - 1)) ) * $1 ))

Mar 12, 2024 · Here is a sample shell code to calculate factorial using while loop: do # use $line variable to process line echo " $line " done exec 0 <& 3 fi. You can easily evaluate the options passed on the command line for a script using while loop: ...... while getopts ae:f:hd:s:qx: option. do case " ${option} " in . a) ALARM = "TRUE";; .

Mar 17, 2024 · To calculate factorial using a while loop, the multiplication operator * is used inside the loop. The operator keeps multiplying the current value of the factorial and an input number to get the final result.

In this tutorial, we will learn how to find factorial of a given number in different ways using Bash Scripting. Find Factorial using Bash While Loop. In this example, we will take a while loop and iterate it given number of times, while we consolidate …

Solution 1: Factorial bash script using recursive function. Here's a sample bash scripting for getting factorial of a given number using only a for loop. I have added the option step for checking that non-negative numbers are not enetered.

You can create a shell script to find the factorial of a number using a while loop. Here is an example: In this script, we prompt the user to enter a number and store it in the variable number .