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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 8 of 17

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Q71.
Which of the following commands is used to get directory one level up?

a.

cd

b.

cd ..

c.

cd/

d.

chdir

Discuss
Answer: (b).cd ..
Q72.
Which of the following commands is used to count the total number of lines, words, and characters contained in a file.

a.

count p

b.

wc

c.

wcount

d.

countw

Discuss
Answer: (b).wc
Q73.
Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories?

a.

rm *

b.

rm -r *

c.

rm all

d.

rm *.*

Discuss
Answer: (b).rm -r *
Q74.
Which of the following commands is used to change the working directory?

a.

cd

b.

changedir

c.

chdir

d.

cdir

Discuss
Answer: (a).cd
Q75.
Which of the following commands is used to view your file 24 lines at a time?

a.

pg

b.

cat

c.

lp

d.

/p

Discuss
Answer: (a).pg
Q76.
Which shell's wild-cards is used to match a single character?

a.

*

b.

?

c.

[ijk]

d.

[!ijk]

Discuss
Answer: (b).?
Q77.
In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory.

a.

.exrc

b.

.profile

c.

lastlogin

d.

.mbox

Discuss
Answer: (b)..profile
Q78.
Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory?

a.

copy wb ../misc collect ../misc mon ../misc

b.

cp wb collect mon ../misc

c.

copy wb collect mon /misc

d.

tar wb collect mon /misc

Discuss
Answer: (b).cp wb collect mon ../misc
Q79.
The command chmod 761 note is equivalent to

a.

chmod 167 note

b.

chmod u=rwx, g=rw, o=x note

c.

chmo a =761 note

d.

chmod 4=7, g=6,0 =1 note

Discuss
Answer: (b).chmod u=rwx, g=rw, o=x note
Q80.
The commonly used UNIX commands like date, ls, cat, etc. are stored in

a.

/dev directory

b.

/bin and /usr/bin directories

c.

/tmp directory

d.

/unix directory

Discuss
Answer: (b)./bin and /usr/bin directories
Page 8 of 17

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