DISTANCE EDUCATION
M.C.A./M.C.A. (Lateral) DEGREE EXAMINATION, MAY 2017
Third Semester
Computer Applications
UNIX AND SHELL PROGRAMMING
(2005 to 2010 Calendar Year)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20
1. Explain the basis of files in Unix.
Describe the various options in is command.
2. What is meant by filter? Explain any two filters.
What are awk built-in functions? Explain.
3. Describe the features of Meta characters and shell
variables.
Explain the following shell commands with
examples.
pwd
who.
4. Discuss the while loop in Unix with example.
Explain the conditional expression in Unix.
Sub. Code
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DE-450
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WS 20
5. What are shell built-in variables? Explain.
Explain the usage of news and trap commands.
6. Write a Shell program to compare two files.
What are the various system calls for file creation?
Explain.
7. Explain the usage of Iseek and inodes.
Describe the use of commands get and put in shell
programming with example.
8. Explain any ten common ms formatting commands
with examples.
Write a procedure for fibonacci series.