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Posted By: Sra1 Member Level: Diamond Posted Date: 27 May 2008
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2007 Jawaharlal Nehru Technological University Civil Engineering ADVANCED UNIX PROGRAMMING (III B.Tech II Semester Supplimentary Examinations, Apr/May 2008) Question paper
Set No 1
---------------------
Time: 3 hours [Max Marks: 80]
Answer any FIVE Questions
All Questions carry equal marks
1. Explain the following commands with syntax
(a) finger
(b) find
(c) unlink
(d) ulimit. [4×4=16]
2. Explain the following commands with syntax
(a) fgrep
(b) egrep
(c) paste
(d) tee. [4×4=16]
3. Explain the following functions with syntax:
(a) read()
(b) write()
(c) open()
(d) close() [4×4=16]
4. Is there any way for a function that is called by main function to examine the
command-line arguments without
(a) Passing ‘argc’ and ‘argv’ as arguments from main to the function.
(b) Having main copy ‘argc’ and ‘argv’ into global variables. [8+8]
5. (a) What are the phases in signaling process? Explain what is meant by the
lifetime of a signal. [3+5]
(b) What is meant by signal catching function? What are the advantages of signal
function. [3+5]
6. (a) Explain in detail about the requirements of file locking mechanism. [8]
(b) With an example, Explain about the setting a lock. [3+5]
7. Explain in detail about the System V IPCs. [16]
8. (a) Explain, How to place “Data in shared memory”. [8]
(b) What is the use of destroying a shared memory segment? Explain the process of “destroying a shared memory segment”. [3+5]
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