Visvesvaraya Technological University (VTU) 2006 B.E Computer Science Fifth Semester , uary/ruary -Unix & Shell Programming - Question Paper

Fifth Semester B.E. Degree Examination, January/February 2006
Computer Science/ info Science & Engineering
Unix & Shell Programming
Time: three hrs Max Marks:100
Note: ans any 5 full ques.
1. (a) With a neat diagram, discuss the relationship ranging from the kernel and shell in UNIX
(8 marks)
(b) define the sailent features of the UNIX operating system. (8 marks)
(c) Write a note on man command. (4 marks)

2. (a) discuss the various kinds of file supported in UNIX. (6 marks)
(b) define the file attributes displayed with ls-l command. (5 marks)
(c) discuss the subsequent commands with suitable examples
Pwd, mkdir, cp, wc (8 marks)

3 (a) discuss the various modes of operation in a vi editor. (8 marks)
(b) discuss the commands search for trend and search & change in vi editor.
(6 marks)
(c) elaborate standard input, standard output and standard output and standard error?
discuss with respect to UNIX. (6 marks)

4 (a) What is process states? discuss ps with choices. (8 marks)
(b) How do you make use of the subsequent commands in UNIX? discuss with suitable
example. mesg, talk, mailx, pine (8 marks)
(c) Write a note on finger command. (4 marks)

5 (a) How do you paginate in UNIX? discuss the command with all choices. (8 marks)
(b) How does grep help in searching for a pattern? discuss every choice with an
example. (12 marks)

6 (a) What is shell programming? Write a shell program to execute list of files, process of
User and users of system. (9 marks)
(b) discuss the shell feature of while and for with syntax. (6 marks)
(c) Write a note on debugging shell script. (5 marks)

7 (a) Write a note on awk with choices. (6 marks)
(b) discuss the string handling functions in perl (6 marks)
(c) How is file handling managed in perl? discuss with an example. (8 marks)
8 (a) List and discuss the privileges of system administrator. (12 marks)
(b) discuss the facility of mounting and unmounting the files. (8 marks)

Earning:   Approval pending.