DISTANCE EDUCATION
M.C.A. DEGREE EXAMINATION, DECEMBER 2017.
Second Semester
UNIX AND SHELL PROGRAMMING
(2010 Academic Year Onwards)
Time Three hours Maximum 100 marks
SECTION A — X 8 40 marks)
Answer any FIVE questions.
1. Discuss the components of UNIX and kernel-shell
relationship.
2. Explain Sed editor and its basic operations.
3. Write short notes on Directories and inodes.
4. Write short notes on standard input and output in Unix.
5. Discuss about shell and execution of shell script with an
example.
6. What do you mean by filters? Give examples of filters.
7. Explain MS Macro Package.
8. Explain the following with suitable
chmod
unmask.
Sub. Code
202
DE-2988
2
sp3
SECTION B — × 15 60 marks)
Answer any FOUR questions.
9. What are the basic functions of shell?
Explain the different types of shells used in UNIX
OS.
10. Why is UNIX more portable than any other
operating system?
Discuss its multi-user and multi-tasking features.
11. Discuss different operational modes of vi editor.
Generate line numbers for the file being edited
currently, mark a block of lines and perform cut and
paste.
12. What is system call? Discuss about any four system
calls.
Discuss about file permission and its types.
13. What are the basic functions of a shell? Explain the
different types of shells used in UNIX OS?
14. Explain conditional and looping structures in shell
programming.
Write a program to reverse the given number which
consists of n digits.
15. Write short notes on
Pattern matching
Error handling with suitable examples.