UNIX MCQ Questions for Exam and Interview Preparation

1

Which of the following command is used to go to home directory?

A) cd.. B) cd/ C) cd D) cd HOME. E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

The cd command is used to change the current working directory. When used without any arguments, it takes you to your home directory.
Options A, B, and D are incorrect as they do not accurately represent the command to go to the home directory.

2

Which command is used to move all files to the bin sub-directory of the parent directory?

A) mv *.* /bin/ B) mv * /bin/* C) mv * ../bin D) mv * ../bin *.* E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

The mv command is used to move files or directories. In this case, the wildcard * is used to select all files in the current directory, and ../bin specifies the bin sub-directory of the parent directory as the destination.
Options A, B, and D are incorrect as they either specify incorrect destination directories or use incorrect wildcard patterns.

3

Which command is used to save the standard output in a file, as well as display it on the terminal?

A) more B) cat C) grep D) tee E) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

4

The command that can be used to restrict incoming messages to a user is

A) mesg B) grep C) halt D) sleep E) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

5

Which of the following commands is used to copy directory structures in and out

A) cp B) cpio C) cp - p D) copy E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

6

Which of following commands is used for an automatic reminder service?

A) write B) mesg C) calendar D) mail E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

7

Which command allows you to view your file 24 lines at a time?

A) more B) pg C) cat D) lp E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

8

Which of the following special shell variables is used to process number of the current shell?

A) $! B) $$ C) $0 D) $* E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

9

Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?

A) -l B) -d C) -r D) -b E) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

10

Which command is used with vi editor scroll half page backward?

A) [Control-d] B) [Control - u] C) [Control-c] D) [Control -P] E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

UNIX MCQ Questions for Exam and Interview Preparation | Computer Science