Question

Write a bash script that...

• create new user
  • ./finalProject user
  • if a new user is to be created ask for the new users information and use it when creating the new user
• add a new printer
  • ./finalProject printer
  • ask anything you need in order to create the new printer (I.e. name)
• permissions
  • ./finalProject permissions
  • ask what document and permissions the user wants
• restarting the computer
  • ./finalProject restart

Answer 1

A bare bone bash script to solve the given problem is copied below. Do note that it doesn't implement checks for given command line arguments neither does it checks whether a task is successful or failed as its not the requirement of the problem but it does issues commands that will display the change once its done.

To summarize, the commands used for different actions are:

1. Create user - useradd -u <USER_ID> <USER_NAME>
2. Add printer - lpadmin -p <PRINTER_NAME> -v <PRINTER_URI>
3. Set permission - chmod <PERMISSIONS> <DOCUMENT_PATH>
4. Restart computer - shutdown -r now

Also note that you would need to execute the script as root or privileged user or with sudo to allow it carry out most of the actions.

=============================================================================

#!/bin/bash
key="${1}"
case ${key} in
user)
   echo "Create new user"
   echo "==============="
   echo -n "Specify username: "
   read username
   echo -n "Specify user ID: "
   read userid
   useradd -u $userid $username
   id $username
   ;;
printer)
   echo "Add new printer"
   echo "==============="
   echo -n "Specify printer name: "
   read printername
   echo -n "Specify printer IP: "
   read printerip
   lpadmin -p $printername -v socket://$printerip:9100
   lpstat -p $printername
   ;;
permissions)
   echo "Set permission"
   echo "=============="
   echo -n "Specify document path: "
   read docpath
   echo -n "Specify the permission to set: "
   read perm
   chmod $perm $docpath
   ls -l $docpath
   ;;
restart)
   echo "Restarting the computer..."
   echo "=========================="
   echo
   shutdown -r now
   ;;
esac

=============================================================================

Here's the script screenshot:

=============================================================================

Here's a sample run of the script for each possible scenario: