JNTU Kakinada B-Tech 4-2 UNIX AND SHELL PROGRAMMING R13 April 2018 Question Paper

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
UNIX AND SHELL PROGRAMMING (Electrical and Electronics Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) List and explain the commands that do not accept any arguments. [4]
b) Explain about nl command. [3]
c) Define file system. [3]
d) Write applications of awk. [4]
e) Why shell scripting? [4]
f) Explain about C shell. [4]

PART ?B (3×16 = 48 Marks)2. a) Explain about the UNIX architecture. [8]
b) Describe the following commands: (i) script (ii) more (iii) tar (iv) mount. [8]

3. a) What are process utilities? Explain in detail. [8]
b) Explain about unlink, unmask and rlogin with examples. [8]

4. a) Discuss about directory API. [8]
b) What is redirection? Explain three redirection operator with an example shell
script.
[8]

5. a) Discuss about string functions and mathematical functions. [8]
b) Explain in detail about grep family. [8]

6. a) Describe environmental variables in Korn shell. [8]
b) Explain about expressions in Korn shell. [8]

7. a) Discuss about environmental and on-off variables in C shell. [8]
b) Describe decisions in C shell. [8]

Code No: RT42024B
Set No. 1
R13
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