PROGRAMME: COMPUTER SCIENCE & ENGINEERING COURSE: Operating System Lab SEMESTER: VI CREDITS: 2

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1 Course: CS693- Operating System Lab PROGRAMME: COMPUTER SCIENCE & ENGINEERING DEGREE:B. TECH COURSE: Operating System Lab SEMESTER: VI CREDITS: 2 COURSECODE: CS693 COURSE AREA/DOMAIN: Laboratory Skills CORRESPONDING Theory COURSE CODE : CS603 COURSE TYPE: Practical CONTACT HOURS: 3 (weeks) THEOTY COURSE NAME: Operating System Syllabus 1. Shell programming: creating a script, making a script executable, shell syntax (variables, conditions, control structures, functions, commands). 2. Process : starting new process, replacing a process image, duplicating a process image, waiting for a process, zombie process. 3. Signal : signal handling, sending signals, signal interface, signal sets. 4. Semaphore : programming with semaphores (use functions semctl, semget, semop, set_semvalue, del_semvalue, semaphore_p, semaphore_v). 5. POSIX Threads : programming with pthread functions(viz. pthread_create, pthread_join, pthread_exit, pthread_attr_init, pthread_cancel) 6. Inter-process communication : pipes(use functions pipe, popen, pclose), named pipes(fifos, accessing FIFO) TEXT/REFERENCE BOOKS 1. Das, Sumitabha, Unix Concepts And Applications, Tata McGraw-Hill Education. 2. Behrouz A. Forouzan, Richard F. Gilberg, Unix and shell Programming., Cengage Learning. Course pre-requisites Refer to theoretical course (CS603). Problem Solving and Basics of Computer Programming. Basic knowledge of UNIX operating system. Course Objectives 1. To develop conceptual understanding of UNIX commands and UNIX Shell programming. 2. To provide a practical exposure of all algorithms and behaviour of processes in the system with respect to all its timings. 3. To develop understanding about signal, inter-process communication and semaphore. Department of CSE Page 1

2 Course Outcomes 1. To complement the theoretical knowledge. 2. Graduates will have a basic knowledge of UNIX commands and Shell programming. 3. Graduates will be able to analyze and evaluate different process scheduling techniques. 4. Graduates will get a thorough knowledge of inter process communication. 5. Graduates will be able to implement semaphore operations. Program Outcomes addressed in this course b. An ability to design and conduct experiments, as well as to analyze and interpret data. k. An ability to use the techniques, skills, and modern engineering tools necessary for engineering practice. Lab Outcomes addressed in this course LO1. Apply appropriate instruments and/or software tools and handle them carefully and safely to make measurements of physical quantities or perform data analysis. LO2. Identify the strength and limitations of theoretical models and establish a relationship between measured data and underlying physical principles. LO3. Specify appropriate equipment and procedures/algorithms, implement these procedures/algorithms, analyze and interpret the resulting data. LO4. Design and build a software/hardware part to meet desired specifications and tests it using appropriate testing strategy and/or equipments. Lab Assignments Assignment 1: Introduction to UNIX architecture. Assignment 2: Introduction to basic UNIX commands: who, who am i, pwd, ls, cd, mkdir, rmdir, rm, cp, mv, touch, cat, wc, more. Introduction to pipe and metacharacters. Assignment-3 Suppose there is a file name ab.txt where the contents are- Dog is domestic animal Dog hates cat Cat drinks milk Dog is bigger than cat Cat is also a domestic animal a. Find the total number of lines contains the word dog in ab.txt. b. Also find the total number of lines does not contain the word dog in ab.txt. Assignment-4 Write the command to find the square root of 4. Assignment-5 Show how we can calculate the following expression in the terminal of UNIX Department of CSE Page 2

3 A=5, b=6,z=9 Total = (A*b) + (z/a) Display the Total. Assignment-6 How can we sort a list of numbers in a file (both ascending and descending order)? Assignment-7 Show the last 7 lines of the file text1. Assignment-8 Show the first 5 lines of the file text1. Assignment-9 Count the number of directories in your current directory. Assignment-10 Write a shell program to print the largest among three numbers by passing the numbers through command line arguments. Assignment-11 Write a shell program to perform the swapping between two numbers by the help of command line arguments. Assignment-12 Write a shell program to display the following mark sheets of students by taking the input marks of student through the terminal Marks range Grade 90>=M<=100 A 70>=M<=89 B 40>=M<=69 C M<40 F Assignment-13 Write a shell program to display the content of a file after reading the file. Assignment-14 Write a shell program to display the first three lines of a file. Assignment-15 Write a shell program to calculate the factorial of a number. Assignment-16 Write a shell menu driven program to do the following a. Display the number of counts of all the files in the bin directory. b. check whether an input number is even or odd. c. Display the view of all current running processes. d. Display the current exit status of the previous program. e. display the current working directory. f. print the long listing of all the files. Assignment-17 Write a shell program to display all the prime numbers between 1 to 100 using while loop. Assignment-18 Write a menu program with following options 1. Make a file 2. Display contents 3. Rename the file 4. Delete the file 5. Exit Assignment-19 Write a shell script to accept a login name from the user and check if the user has logged in. Use command Department of CSE Page 3

4 line argument to input user name. Assignment-20 Write a shell script which will generate the output as follows * * * * * * * * * * Assignment-21 Using command line arguments accept a directory name from the user. Write a shell script to display the count of subdirectories under that particular directory. Assignment-22 Write a shell script to modify permission of two files in your present working directory. Use command line arguments to enter file names. The files should be blank and you should create the files by executing your script. Grant write and execute permission to all the users of those two files. Assignment-23 Write a shell program which count the total number of lines, word and characters in a file and display only the last three lines of that file. (Create the file with minimum 10 lines). Assignment-24 Write a menu driven program to do the following a. Display the number of counts of all the files in the bin directory. b. Print the Tribonacci series c. Display the view of all current running processes. Assignment-25 Write a shell script which act as a DOS command interpreter. DOS uses the command dir, type, del, ren and copy to do the same functions as the UNIX commands cd, ls, cat, rm, mv and cp. This script loops continuously, allowing the user to type in DOS commands, which are stored in the variable $command. The command is considered by the case statement, which executes an appropriate UNIX command, depending on which DOS command has been given. Assignment-26 Write a program in C which will show how to create, manage and kill a process in the UNIX environment. Assignment-27 Write a C program which will demonstrate the creation of Orphan process. Assignment-28 Write a C program which will demonstrate the creation of Zombie process. Assignment-29 Write a C program to show the use of execl() system call. Assignment-30 Write a C program which passes a signal between two processes using SIGINT. Assignment-31 Write a C program to show the impact of SIGFPE and SIGCLD signals in a process. Assignment-32 Write a C program to create a message queue for message passing. Assignment-33 Write a C program to send a message into the message queue. Assignment-34 Write a C program to receive a message from the message queue. Assignment-35 Write a C program for creation of a FIFO Queue. Assignment-36 Write a C program for interprocess communication using PIPE (FIFO)[Server FIFO and Client FIFO] Assignment-37 Department of CSE Page 4

5 Write a C program to create a semaphore for process synchronization. Assignment-38 Write a C program to create semaphore each in a parent and a child process, and then retrieve and set semaphore values. Assignment-39 Write a C program to destroy an existing semaphore. Assignment-40 Write a C program to create 12 semaphore sets, each with 4 semaphores. Web Source References S.NO. 1 2 URL cseweb.ucsd.edu/classes/fa05/cse120/lectures/120-l6.pdf Delivery/Instructional Methodologies S.NO. DESCRIPTION 1 White Board and Marker 2 Computer & Software 3 PPTs Assessment Methodologies S.NO. DESCRIPTION TYPE 1 Lab Assignments. Direct 2 University Examination Direct 3 Student Feedback Indirect Assignments Assignment No. 1-9 Assignment No Assignment No Assignment No Assignment No Assignment No Assesses LO LO1, LO2, LO3 LO1, LO2, LO3 LO1, LO3 LO1, LO3, LO4 LO1, LO2, LO3, LO4 LO1, LO2, LO3, LO4 Department of CSE Page 5

6 Recommendation Give a real-life based mini project on process management. Give more assignments on POSIX Threads. Department of CSE Page 6