Top 80+ Solved Unix Operating System MCQ Questions Answer

Q. Which option will be used with sort command to start sorting after the nth column of the (m+1)th field

a. –m.n

b. +m.n

c. +n.m+1

d. +(m+1).n

Q. Which command is used to terminate a process

a. shutdown

b. haltsys

c. cancel

d. kill

Q. The command is used to compare the files is known as

a. comp

b. cmp

c. do

d. ccp

Q. The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is

a. tee

b. tr

c. sort

d. grep

Q. Which command is used to remove a directory

a. rd

b. rmdir

c. dldir

d. rdir

Q. Which of the following keys is used to replace a dingle character with new text

a. s

b. s

c. r

d. c

Q. Which command is used to extract a specific columns from the file

a. cat

b. cut

c. grep

d. paste

Q. Which command sends the word count of the file infile to the newfile.

a. wcinfile>newfile

b. wcnewfile

c. wcinfile - newfile

d. wcinfile | newfile

Q. Which command is used to remove the read permission of the file 'note' from both the group and others?

a. chmodgo+r note

b. chmodgo+rw note

c. chmod go-x note

d. chmod go-r, 4-x note

Q. Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?

a. cat emp[!0-9]

b. more [emp][!0-9]

c. cat emp[x-z]

d. cat emp[a-z]

Q. Which command will be used with vi editor to insert text to left of cursor?

a. s

b. s

c. a

d. i

Q. In vi editor, forward search is performed using the command.

a. :pat

b. :pat

c. /pat

d. all of the above

Q. Which of the following special shell variables is used to process number of the last background job?

a. $!

b. $#

c. $0

d. $*

Q. Which option will be used with ps command to slow the entire command line of the process being run?

a. -4

b. -f

c. -1

d. -4

Q. Which of the following command addresses all users who are currently hooked on?

a. write

b. mail

c. wall

d. mesg