Which command can allow you to run a process in a modified environment without changing the environment of the current shell?
You want to change the file that contains the message which is used at the login prompt when users log in locally.
A user cannot access the cron scheduling system. What file needs to be modified to provide that access?
You want to display a list of all last logged in users. The file /var/log/wtmp exists. Which command would you use?
To ensure this directory is automatically created each time you add a new user, in what subdirectory should you create the directory?