Table of Contents

1. Challenge

   Verify the `testuser` Can Create Scheduled Tasks

   1. Access the testuser's account:

      su - testuser 
      

      The password is Password!

   2. Create a file named test.sh that echoes the string "this is a test" into an examplefile:

      vim test.sh
      
      ++contents
      #! /bin/bash
      echo 'this is a test' >> /home/testuser/examplefile
      

      Save and exit the file with Escape and then Shift+ZZ.

   3. Make the file executable:

      chmod +x test.sh
      

   4. Open testuser's crontab and add a task:

      crontab -e
      

   5. Add this line:

      * * * * * /home/testuser/test.sh
      

      Save and exit with Escape and then Shift+ZZ.

   6. Tail the file examplefile and ensure a line is appended every minute:

      tail -F examplefile
      

   7. Hit Ctrl+C to quit.

   8. Remove the task from the crontab:

      crontab -e
      

   9. On the line with the task, press d twice.

   10. Save and exit with Escape and then Shift+ZZ.

2. Challenge

   Create a Task as `root` that Syncs the System Clock to the Hardware Clock

   1. Open the root crontab:

      sudo -i crontab -e
      

   2. Add the task to run the backup at 3 AM:

      SHELL=/bin/bash
      PATH=/sbin
      00 03 * * * /usr/local/bin/customback /opt/programdata
      

      Save and exit with Escape+X.

   3. Verify the task exists in the root crontab:

      sudo -i crontab -l