CBSE Class 11 Computer Science Basic Ubuntu Linux Commands MCQs

Question : _________ command is used to lists the files that are in user‘s home directory.

a) ls    

b) ls home

c)  ls ~ 

d) ls home*

Answer :   ls ~ 

Question : _________ command is used to list the files by sorting them in reverse order.

a) ls r

b) ls r-  

c)  ls r*

d) ls -r

Answer :  ls -r

Question : __________ command is used to list the files by sorting them based on their modification time.

a) ls t

b) ls t-

c) ls t*

d) ls -t

Answer : ls -t

Question : __________ wildcard character is used to matched a single character – either a, b or c.

a) (abc)

b) [abc] 

c) [!abc]   

d) (!abc)

Answer :  [abc] 

Question : ________ wildcard character is used to matched a single character other than a, b or c.

a) (abc)

b) [abc] 

c) [!abc] 

d) (!abc)

Answer :  [!abc] 

Question : _________ command is used to copy one or more files.

a) cp

b) CP

c) copy

d) COPY

Answer : cp

Question : ______ command is used to renaming files.

a) rm

b) rename

c) move

d) mv

Answer : mv

Question : _______ command is used to view one page of content on the screen at a time.

a) more

b) more page

c) pg out

d) more pg

Answer : more

Question : _________ command is used to counting lines, words and characters in a file.

a) count

b) cnt

c) wc

d) wd cnt

Answer : wc

Question : _______ command is used to change the permission.

a) chmod

b) chper

c) per

d) chmode

Answer : chmod 

Question : ________ symbol is used to provide output of one command as an input to another command.

a) ~  

b) $

c) |

d) #

Answer :  |

Question : _________ command is used to display the required number of lines at the beginning of the files.

a) Head

b) Top

c) Bottom

d) Tail

Answer : Head

Question : _________ command is used to display the required number of lines at the end of the files.

a) Head

b) Top

c) Bottom

d) Tail

Answer : Tail

Question : cut command with_______ option is used to extract specific characters from each line of the file.

a) -f  

b) -c  

c) -d 

d) -x

Answer :  -c  

Question : _________ command is used to order the data stored within a file in ascending or descending sequence.

a) Cut

b) Srt

c) Sort

d) Count

Answer : Sort

Question : ________ command is used to convert strings or patterns from one set of characters to another.

a) convert

b) cnvrt

c) trs

d) tr

Answer : tr

Question : ________ command is used to find a keyword within files from the command line interface.

a) Find

b) CTRL+F

c) grep

d) CTRL+G

Answer : grep

Question : ________ command search all directory and sub directory available on root only.

a) find / -type d 

b) find . -mtime -1

c) find -executable      

d) find . -mtime +1

Answer :  find / -type d 

Question : ________ syntax is correct for assigning a read permission on a user file named ―sharda.

a) chmod r sharda

b) chmod sharda r

c) chmod  u+r shard a

d) chmod sharda u+r

Answer :  chmod  u+r shard a

Question : A directory or file can consist of up to ________ characters on the Linux system.

a) 200

b) 255

c) 10

d) 8

Answer : 255

Question : __________is a short cut key to open a terminal window in Ubuntu.

a) CTRL+ALT+t

b) CTRL+ALT+T

c) CTRL+ALT+terminal

d) CTRL+ALT+window

Answer : CTRL+ALT+t

Question : ________ symbol is followed by the name of the computer that is being used.

a) $

b) ~

c) @

d) #

Answer : ~

Question : _______was developed to combine the features of sh and csh.

a) tcsh

b) shcsh

c) sh

d) ksh

Answer : sh

Question : ________ command is used to display calendar of Jun 2013.

a) cal 06 2013

b) cal 01 2013

c) cal jun 2013

d) None of these

Answer : cal jun 2013

Question :    ______ is the output of $date +%D command.

a) 06/13/13

b) Wed Feb 13

c) 13

d) None of these

Answer : 06/13/13

Question : _______ command in Linux is a command line calculator.

a) cal

b) bc

c) cal bc

d) None of these

Answer : bc

Question : ________ function allows user to set what number system to use for output.

a) ibase

b) obase

c) Both (A) & (B)

d) None of these

Answer : obase

Question : ________ command is used to return to the Linux command prompt.

a) CTRL+t

b) CTRL+r

c) CTRL+q

d) CTRL+d

Answer : CTRL+d

Question : Obase = _____ for converting decimal number to hexadecimal numbers in calculator on ubuntu.

a) 16

b) 10

c) 8

d) 2

Answer : 16

Question : ________ command is used to display a message on the terminal.

a) msg

b) message

c) echo

d) eco

Answer : echo

Question : ________ is used to find out square root in calculator on ubuntu.

a) square

b) root

c) squrt

d) sqrt

Answer : sqrt

Question : __________ command is used to change the password.

a) passwd

b) password

c) pswd

d) pwd

Answer : passwd

Question :  Obase =  _______ for converting hexadecimal number to decimal numbers in calculator on ubuntu. 

a) 16

b) 10

c) 8

d) 2

Answer :  10

Question :  _________command is used to display current time as 14 :55 :04. 

a) date +%t

b) time +%T

c) date +%T

d) date +%CT

Answer :  date +%T

Question : ________ command is used to remove data on the screen of command prompt.

a) rm

b) remove

c) clr

d) clear

Answer : clear

Question : _________ command is used to assist the user while working on the command line interface.

a) Help

b) Man

c) Both (A) & (B)

d) None of these

Answer : Both (A) & (B)

Question : _______ command is used to display small description of move command.

a) What is mv

b) desc mv

c) whtis mv

d) smldesc mv

Answer : What is mv

Question : ________ command is used to see a list of all commands that has the string as the part of command or command description.

a) apropos string

b) desc string

c) apropos strg

d) desc strg

Answer : apropos strg

Question : _________ command is used to see full of commands that have copy as a string within the command or its description.

a) apropos cp

b) desc cp

c) apropos copy

d) desc copy

Answer : apropos cp

Question : ________ command is used to know the current working directory.

a) cwd

b) wrk dir

c) pwdir

d) pwd

Answer : pwd

Question : ________ command is used to create a directory.

a) crt dir

b) mkdir

c) ct dir

d) make dir

Answer : mkdir

Question : Command mkdir ab will create _____________ directory.

a) a

b) b

c) Both (A) & (B)

d) ab

Answer : ab

Question : _________ command is used to change directory to the home directory from any current path.

a) cd / 

b) cd - 

c) cd

d) cd ~/Desktop

Answer : cd

Question : ________ command is used to change directory to the root directory from any current path.

a) cd / 

b) cd -

c) cd ~/Desktop 

d) cd

Answer :  cd ~/Desktop 

Question : _________ command is used to change directory to the previously changed directory.

a) cd / 

b) cd -

c) cd ~/Desktop 

d) cd

Answer :  cd -

Question : ________ command is used to remove an empty directory.

a) rmdir

b) rmvdir

c) rm dir

d) rmv dir

Answer : rmdir

Question :  ______ command is used to create a file named =a‘.

a) cat a

b) cat >> a

c) create a

d) cat> a

Answer : cat> a

Question :   ______command is used to append a content of file named =a‘

a) cat a

b) cat >> a

c) append a

d) cat >a

Answer : cat >> a

Question : _________ command is used to view a content of file named ‗a‘.

a) cat a

b) cat >> a

c) view a

d) cat >a

Answer : cat a

Question : _________ command is used to delete one or more files.

a) dlt

b) rm

c) rm more

d) dlt more

Answer : rm