CompTIA LINUX+

Question 1

Which of the following commands will open the mainlist. txt text file in a command-line text editor?

a) cd mainlist.txt
b) rm mainlist.txt
c) gedit mainlist.txt
d) vi mainlist.txt

Answer 1

d

Question 2

Which command will modify the date and time stamp of an existing file?

a) ls {hfx,tor}??
b) file [Bb}*201[4-5]
c) touch [a-z] [a-z] [a-z] 0?

Answer 2

c

Question 3

Which command will allow you to replace the string red with the string blue in a text file without being asked for confirmation?

a) :%s /red/blue
b) :%c /red/blue/s
c) :%s /red/blue/c

Answer 3

a

Question 4

You used to vi to open a text file and now you want to edit it. What options represent the keys you can press that will allow you to actually edit the contents?

a) a
b) i
c) v
d) w

Answer 4

a and b

Question 5

Write the command to compress every file contained in the /images directory using the fastest compression command.

Answer 5

gzip -r /images

Question 6

Which statement best describes the purpose of the tee command?

a) It allows you to send the output of a query to another query
b) It allows you to print query results
c) It allows you to write standard output to the screen and additional locations

Answer 6

c

Question 7

Write the command that would return any files owned by the emclampett that are in the /images directory.

Answer 7

find /images -user emclampett

Question 8

Complete the code to use the cpio command to extract the files from /images.cpio and place them in the same directory, recreating any required subdirectories.

Answer 8

-id < /images.cpio

Question 9

Complete the command that will add the /images directory to the PATH variable

Answer 9

PATH=$PATH:/images

Question 10

Complete the code to recursively copy all files in the current directory to the /backup001 directory. Make sure the code also returns what files have been copied.

Answer 10

-Rv

Question 11

You want to search cheese.txt for instances of string blue, but you don’t want the search to be case sensitive.

a) -c
b) -i
c) -v

Answer 11

b

Question 12

You’ve opened a text file using vi and now you want to search for instances of the string mark. As mark can be a verb as well as a name you want to make your search case insensitive. Which option will perform this query?

a) \MaRk/
b) /mark\c
c) \mark/c

Answer 12

b

Question 13

Write the command that will copy all subdirectories recursively in /images in the backup folder /imgbak.

Answer 13

cp -r /images /imgbak

Question 14

What command will return the value of the variable PATH in the shell?

a) echo $PATH
b) grep -vPATH
c) | | PATH

Answer 14

a

Question 15

Which operator could you use to mimic an IF statement on the command line?

a) ||
b) |
c) grep

Answer 15

a

Question 16

Which option will return all files including hidden ones?

a) lS -a ~
b) ls -a ~
c) ls-ls ~

Answer 16

b

Question 17

Which statement about piping of output is accurate?

a) Only one piping request can be made per query
b) Piped output must be stored in a variable before it can be used
c) Piping is accessed using the | symbol

Answer 17

c

Question 18

Which command will allow you to reopen a file without saving any changes?

a) :w!
b) :q
c) :e!

Answer 18

c

Question 19

You’ve run history command in the bash shell and now you want to execute the command listed 39th. Which option will do this?

a) ~/39
b) !39
c) 39_history

Answer 19

b

Question 20

Which options will return the contents of the variable myVar?

a) echo $MYVAR
b) echo $myVAR
c) cat &myVAR

Answer 20

b

Question 21

Which command will remove files and directories recursively from /images without prompting for confirmation before removing each file?

a) rm -rvi /budgets
b) rm - rv /images
c) rm rv-i /budgets

Answer 21

b

Question 22

Using gedit as your text editor, complete the query to search the snacks directory and open the files inside.

find/ home/snacks/*.txt | _______

Answer 22

xargs gedit