LPI: LX0-104 Scripting and Administrative Tasks

Question 1

You are creating a special purpose and limited accounts in SUSE Linux. You want to retrieve an entry from the passwd file for a built-in user account called wwwrun.

Answer 1

getent passwd wwwrun

Question 2

You want to create a while loop to test an i variable that you have created, with while $i less than or equal to 5.

linux-oro0:/scripts # ____

Answer 2

while [ $i -le 5 ]

Question 3

You are configuring user access to cron and AT services. You open the cron.allow file and add hmccabe here so the user is allowed to schedule cron jobs.

Iinux-oro0:~ # vi /etc/cron.allow
linux-oro0:~ # su hmccabe
hmccabe@linux-oro0:/root> _____

Answer 3

crontab -e

Question 4

You want to verify that the cron daemon itself is running in SUSE Linux. Type the command to do this.

linux-oro0:~ # _____

Answer 4

rccron status

Question 5

Which command do you use to delete a user’s home directory?

A) userdel -r

B) groupdel

C) useradd —m

C) usermod

Answer 5

A) userdel -r

Question 6

You are setting the command search path in Linux and want to display the value of the PATH variable. Select the command to do this.

A) $ PATH

B) edit $PATH

C) echo $PATH

Answer 6

C) echo $PATH

Question 7

You are working with shell script return values. What does this code return?

linux-oro0: ~ # test 50 - lt 5 && echo “That’s true.” || echo “That’s false.”

A) 0

B) That’s true.

C) 1

D) That’s false.

Answer 7

D) That’s false.

Question 8

You want to shorthand reference, ki, for the command “uname -r” using BASH. Complete the command to do this.

linuxoro0:~ # _____ =”name -r”

Answer 8

alias ki

Question 9

You are maintaining skeleton directories for new user accounts in Linux. First, you want to look at the content of /etc/default/useradd.

linuxoro0:~ # _____ /etc/default/useradd

Answer 9

cat

Question 10

You want to remove a member from a group. Which is the most appropriate command to use?

A) userdel -r

B) groupdel

C) groupmod -R

D) groupadd

Answer 10

C) groupmod -R

Question 11

You are creating a shell script that can repeat a set of actions using the for statement. What will this code return?

linux ~ # for ((i=l;i<5;i++))

A) 1, 2, 3, 4

B) 5, 6, 7, 8, 9

C) 1, 2, 3, 4, 5

Answer 11

A) 1, 2, 3, 4

Question 12

Which command do you use to create a symbolic link in a file to a particular timezone?

A) tzconfig

B) ln -s

C) date

D) tzselect

Answer 12

D) tzselect

Question 13

You are performing conditional mailing to the superuser in a shell script. Match each command to what it can be used for.

1) Check Mail
2) Verify the content of the subject line of the message
3) Analyze the summarized space usage of a subdirectory

A) -s

B) du -s

C) mail

Answer 13

1) C) mail
2) A) -s
3) B) du -s

Question 14

You want to remove the permissions for other users in the activeusers.sh file. Which command do you use?

A) useradd -m

B) chown

C) chmod u+s

D) set

E) chmod

Answer 14

E) chmod

Question 15

You are configuring an environment variable in Linux. What command do you use to set the scope of a variable?

A) source

B) echo

C) set

D) export

C) env

Answer 15

A) source

Question 16

Which statements about Anacron are true?

A) Runs even if the system was turned off

B) Designed specifically to run on servers

C) Runs daily, weekly, and monthly

D) Useful for Linux laptops and desktops

E) Only root can schedule Anacron jobs

F) The config file is called crontab.config

Answer 16

A) Runs even if the system was turned off

C) Runs daily, weekly, and monthly

D) Useful for Linux laptops and desktops

E) Only root can schedule Anacron jobs

Question 17

Which command do you use to create a symbolic link in a file to a particular timezone?

A) iconv

B) locale

C) ln -s

D) $LANG

Answer 17

C) ln -s

Question 18

You want to create an age variable with a value of 30 in the C shell.

/scripts# _____

Answer 18

set age=30