Chapter 4

Question 1

How many fields are on each line of /etc/group?

Answer 1

4

Question 2

Which option to groupmod changes the name of a group?

Answer 2

-n

Question 3

Which option to groupmod changes the groupid of a group?

Answer 3

-g

Question 4

After you change a group’s groupid, what else should you do?

Answer 4

fix the groupid on any files that were in their group with chgrp

Question 5

Bob is in three groups, chess, scrabble, and bridge. Which command would add him to the baseball group as well?

Answer 5

usermod -a -G baseball bob

usermod -G chess,scrabble,bridge,baseball bob

Question 6

Ventura is in three groups, drama, poetry, and fencing. Which command would remove him from fencing?

Answer 6

usermod -G drama,poetry ventura

Question 7

Which command changes the owner group of the file /etc/fstab to group wheel?

Answer 7

chgrp wheel /etc/fstab

Question 8

A line in /etc/group reads chinatown:x:415:kearny,powell,stockton. Which statement is true?

Answer 8

user powell is a member of group chinatown