The chapter on the shell introduced you to basic commands and common tasks performed using them. Test your knowledge of the shell with the following examples:
List the complete command lines of all the processes belonging to the root user .
Modify the command prompt to display the current working directory.
Use cron to run the date command once every 15 minutes.
Write a shell script that will maintain a log of users logged on to the system. Logging should happen every 5 minutes.