DISTANCE EDUCATION
M.C.A. DEGREE EXAMINATION, MAY 2017.
Second Semester
UNIX AND SHELL PROGRAMMING
(2010 Academic Year onwards)
Time Three hours Maximum 100 marks
PART A — × 8 40 marks)
Answer any FIVE questions.
1. What is meant by shell? How do you execute shell
scripts? Explain.
2. Explain the directories in Unix.
3. Explain the various looping structures available in shell
programming.
4. Explain the various methods of evaluating arguments.
5. Explain the pick and news command with an example.
6. Write short notes on Unix system calls.
7. Explain the method of creating a file in Unix using Vi
editor.
8. Write short notes on Tbl and eqn preprocessors.
Sub. Code
202
DE-686
2
Ws 5
PART B — × 15 60 marks)
Answer any FOUR questions.
9. Explain the Unix system application environment.
10. How do you execute a command without invoking a new
process? Explain.
11. How to trap and catch the interrupt in shell
programming? Explain with an example.
12. Write a shell program to check whether the given number
is prime or not.
13. What do you mean by redirection? Explain the I/O
redirection.
14. List and explain any ten Unix commands with an
example.
15. Write short notes on
MS-Macro package
Document preparation tools.