Deck 1: Linux Command Line Basics

Question 1

Maximum how long can a Linux filename be?

A)128 bytes
B)255 bytes
C)32 bytes
D)64 bytes

Answer 1

255 bytes

Question 2

Which command(s) is/are used to get help about a command in Linux?

A)info
B)man
C)None of these
D)Both a and b

Answer 2

info

Question 3

Which command is used to get the kernel version in Linux?

A)uname -r
B)kernel
C)uname -n
D)uname -s

Answer 3

uname -r

Question 4

In Linux everything stored as a

A)file
B)directory
C)executables
D)None of the above

Question 5

Which of the following command can be used as an alternative to echo command?

A)print
B)printr
C)printf
D)none of these

Question 6

Which command is used see the list of users who are currently logged-in?

A)login
B)users
C)who
D)which

Question 7

Which directory in Linux contains all the config file of the system?

A)/etc
B)/var
C)/lib
D)/bin

Question 8

Which of the following command is used to count number of lines in a file?

A)wc -l
B)wc -c
C)wc -w
D)None of these

Question 9

Which command is used to copy entire directory?

A)cp -r
B)cp -i
C)cp
D)none of these

Question 10

Which special character should be avoided during naming a file?

A).(dot)
B)$
C)_(underscore)
D)-(Hyphen)

Question 11

Suppose I am in /etc directoy, after executing cd .(single dot), where am I now?

A)/etc
B)/(root)
C)/home
D)None of these

Question 12

mv command can be used to ?

A)Move the file to different directory.
B)Renaming a file
C)Both a and b.
D)Only a.

Question 13

Which command is used to print the login shell of an user?

A)echo $SHELL
B)echo $LOGIN
C)echo $LSHELL
D)None of the Above

Question 14

Which command is used to set terminal IO characteristic?

A)tty
B)ctty
C)ptty
D)sty

Question 15

Which option of ls command used to view file inode number

A)-l
B)-o
C)-a
D)-i

Question 16

What is the right command to save file and exit in Vim?

A):wq
B):a
C):q
D):q!

Question 17

Which of the following is not an editor?

A)expr
B)vi
C)emacs
D)ex

Question 18

In a date +format, you add the hour in 24 hours format using:

A)%f
B)%H
C)%F
D)%h

Question 19

What command is used with vi editor to delete a single character?

A)x
B)y
C)a
D)None of the above