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Welcome to the Unix System MCQs Page

Dive deep into the fascinating world of Unix System with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Unix System, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Unix System, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Unix System. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Unix System. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Unix System MCQs | Page 9 of 17

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Q81.
Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year?

a.

find -mtime +365 | rm

b.

grep (/usr/*) - mtime + 365 | -ok rm

c.

find -name - mtime + 365 / - ok rm

d.

find /user/* \(-mtime + 365 - a - atime +365 \) - OK rm {} \;

Discuss
Answer: (d).find /user/* \(-mtime + 365 - a - atime +365 \) - OK rm {} \;
Q82.
Which of the following commands is used to summarize the disk usage?

a.

chkdsk

b.

fdisk

c.

du

d.

disk

Discuss
Answer: (c).du
Q83.
Which command is used to sort the lines of data in a file in alphabetical order?

a.

sort

b.

sh

c.

st

d.

sort -r

Discuss
Answer: (a).sort
Q84.
If a file has read and write permissions for the owner, then the octal representation of the permissions will be

a.

1

b.

6

c.

5

d.

3

Discuss
Answer: (b).6
Q85.
Which command is used to copy a file wb with the same name from the programs directory to the misc directory?

a.

copy programs/wb misc/wb

b.

cp programs/wb misc

c.

tar programs/wb misc/wb

d.

copy a:programs/wb b:misc/wb

Discuss
Answer: (b).cp programs/wb misc
Q86.
Which is the earliest and most widely used shell that came with the UNIX system?

a.

C shell

b.

Korn shell

c.

Bourne shell

d.

Smith shell

Discuss
Answer: (c).Bourne shell
Q87.
The seventh field of /etc/password is

a.

password

b.

login

c.

shell

d.

home

Discuss
Answer: (c).shell
Q88.
Which command is used to display the end of the file?

a.

head - r

b.

tail

c.

eof

d.

bof

Discuss
Answer: (b).tail
Q89.
Which command is used to create a directory?

a.

crdir

b.

md

c.

mkdir

d.

cr

Discuss
Answer: (c).mkdir
Q90.
Which command is used to display the device name of the terminal you are using?

a.

who

b.

ls

c.

tty

d.

stty

Discuss
Answer: (c).tty
Page 9 of 17

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