UNIX And Shell Programming 2023 – BSc Computer Science Part 3

Total No. of Questions : 8] [Total No. of Printed Pages : 3

Time: 3 Hours] [Maximum Marks: 50

Note: Attempt any five questions. All questions carry equal marks.

Section-A

1. (a) Describe in detail about the structure of UNIX.

(b) How can you say that Unix operating system provides more security than other operating system?

2. (a) Explain the following :

(i) System Booting

(ii) System mounting & unmounting

(b) Explain the security levels provided in Unix environment. How to change permissions of a file?

3. (a) What is user and group in UNIX? Explain the related commands for changing ownership and group.

(b) What are system calls?

4. (a) What are the functions of shell in Unix?

(b) What is the difference between foreground process and background process? Explain with an example.

5. Write a shell script to accept student name register number and marks of four subjects of 10 students.

6. (a) List Korn shell features.

(b) What is meant by child shell execution.

7. (a) Explain process synchronization in detail.

(b) With suitable example explain about sleep and wait command.

8. Explain the following:

(i) Child Parent Relationship

(ii) YACC

(iii) Aliasing

(iv) Debuggers Dbx

(v) Strip and Ctrace

……..End……..

Thank You Neeraj 🙂