Factorial of a given number using unix shell?

Asked By: Regan Buckridge
Date created: Fri, Jun 4, 2021 9:59 PM
Best answers
Answered By: Ethan Bosco
Date created: Sun, Jun 6, 2021 8:37 AM

Bash script to find factorial of a number$ cat fact.sh#!/bin/bashif [ $# -ne 1 ]thenecho "Usage: "echo " $0 "exit 1fino=$1fact=1if [ $no -le 0 ]thenecho "Please pass positive value."exit 1fiwhile [ $no -ge 1 ]dolet fact=fact*nolet no=no-1doneecho "$1! = $fact"

FAQ
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How do i know my current shell?

  1. ps -p $$ – Display your current shell name reliably.
  2. echo "$SHELL" – Print the shell for the current user but not necessarily the shell that is running at the movement.

How do i know my current shell?

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How do i run a shell file?

  1. Open the terminal. Go to the directory where you want to create your script.
  2. Create a file with . sh extension.
  3. Write the script in the file using an editor.
  4. Make the script executable with command chmod +x <fileName>.
  5. Run the script using ./<fileName>.

http://bash-edit.com/how-do-i-run-a-shell-file

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How do i create a simple shell script?

  1. Create a file using a vi editor(or any other editor). Name script file with extension . sh.
  2. Start the script with #! /bin/sh.
  3. Write some code.
  4. Save the script file as filename.sh.
  5. For executing the script type bash filename.sh.

How do i create a simple shell script?

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