Bachelor in Computer Application Part-II
Paper-VIII (Introduction to System Software) CS-63
Time: 3.00 Hrs. Full Marks: 100(80+20)
Answer any four questions. All questions carry equal marks.
1. Write a shell script which displays the first 10 lines of the file and copies it to another file.
2. List and execute the following UNIX commands:
To remove a file from the current directory.
To move or rename a file.
To make a directory in the current directory.
To remove a sub-directory existing in the current directory.
To kill a process with it's ID.
To set the file permissions of any given file: read, write, and execute permissions for
the owner' and execute permission to the group, and read and execute permissions to
the others.
Copy the content of one file to another.
To display various processes running.
3. Write a shell script to display the Fibonacci series up to 15 terms.
4. What is CPU scheduling? Explain different types of schedulers.
5. What paging and segmentation? Explain with the help of an example.