Standard Linux Text Book

6.4 Exercise

Let's make dog group, the group ID of which is 1200.

Let's delete the created dog group.

Let's make user group belonged user xoops, the user ID of which is 1100.

Let's change xoops user's comment into "Xoops Cube."

Let's delete a xoops user by the vipw command.

Let's become the root user by using su command and look at the files under /var/log directory.