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 to add two numbers and display the result.
2. List and execute the following UNIX commands:
To list all the files in the current directory.
To look at a file, one page at a time.
To display online manual (help) for any command.
To find a string pattern in a file and write its count of number of occurrences.
To print out current date.
To print the present working directory.
To display the long listing of all, the files in the current directory.
To select all the file-names whose file name starts with either "a" or "b" or "c" in
the current directory?
3. Write a shell program to find whether a given number is a prime number.
4. What are different types of assemblers? Explain them with the help of an example.
5. What is deadlock? Explain necessary conditions for the occurrence of a Deadlock.