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Code No:420253 IV-B.TECH. II-SEMESTER, EXAMINATION APRIL,2003 UNIX AND WINDOWS NT (Electrical and Electronics Engineering) Time: 3 hours.

Answer any FIVE questions All questions carry equal marks. --Explain the main features of UNIX operating system. Explain how the UNIX operating system manages the sharing of resources.

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1.a) b)

Max.Marks:70

Explain the following commands: a) sort. b) grep. c) diff. d) cal.

3.a) b) c)

Create a file and give only execute permission to your group members and others Create a file and change the ownership, then change its permissions. Find and delete all files with the word “good”.

4.a) b)

What are the different numerical operators in bourne shell? Mention and explain various meta characteristics in UNIX shell.

5.a)

What is the difference between the use of pipe symbol and redirection symbol? Give one example for each. Explain the following (i) who| sort (ii) ls | wc –l (iii) who | wc –l (iv) who | grep mary

6.a)

Write the general syntax of case statement in shell programming. Discuss with examples. What is the “here” document (<<). Give an example.

nt

b)

uW

b)

or ld

2.

What is cooperative computing model? What are the special capabilities of windows NT server?

Aj

7.

8.

Explain how the Windows NT server manager administrative tool may be used for a verity of high level system management tasks.

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