Unix System Programming

Powerful Essays
Topics: Unix
R N S INSTITUTE OF TECHNOLOGY
CHANNASANDRA, BANGALORE - 61

UNIX SYSTEM PROGRAMMING
NOTES FOR 6TH SEMESTER INFORMATION SCIENCE SUBJECT CODE: 06CS62 PREPARED BY

RAJKUMAR
Assistant Professor Department of Information Science

DIVYA K
1RN09IS016 6th Semester Information Science and Engineering 1rn09is016@gmail.com

Text Books: 1 Terrence Chan: Unix System Programming Using C++, Prentice Hall India, 1999. 2 W. Richard Stevens, Stephen A. Rago: Advanced Programming in the UNIX Environment, 2nd Edition, Pearson Education / PHI, 2005
Notes have been circulated on self risk nobody can be held responsible if anything is wrong or is improper information or insufficient information provided in it.

Contents: UNIT 1, UNIT 2, UNIT 3, UNIT 4, UNIT 5, UNIT 6, UNIT 7

RNSIT

UNIX SYSTEM PROGRAMMING NOTES

UNIT 1 INTRODUCTION
UNIX AND ANSI STANDARDS
UNIX is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Douglas McElroy and Joe Ossanna. Today UNIX systems are split into various branches, developed over time by AT&T as well as various commercial vendors and non-profit organizations.

The ANSI C Standard
In 1989, American National Standard Institute (ANSI) proposed C programming language standard X3.159-1989 to standardise the language constructs and libraries. This is termed as ANSI C standard. This attempt to unify the implementation of the C language supported on all computer system. The major differences between ANSI C and K&R C [Kernighan and Ritchie] are as follows:  Function prototyping  Support of the const and volatile data type qualifiers.  Support wide characters and internationalization.  Permit function pointers to be used without dereferencing. Function prototyping ANSI C adopts C++ function prototype technique where function definition and declaration include function names, arguments’ data types, and return value data types. This enables ANSI C

You May Also Find These Documents Helpful

  • Powerful Essays

    Unix Programming

    • 877 Words
    • 4 Pages

    TESTING 7 Testing with valid inputs 7 Testing with invalid inputs 8 CONTENTS OF THREE FILES (TEXTS) 10 A1 10 N1 10 M1 10 CONCLUSION 11 REFERENCES 12 INTRODUCTION The main objective of this course work is to develop a small program in the UNIX environment either by using Bash shell or Korn shell. After creating the program, the students have to test the program for any errors/bugs. If any errors are found the students are required to diagnose/troubleshoot the bugs. This type of course…

    • 877 Words
    • 4 Pages
    Powerful Essays
  • Satisfactory Essays

    Distinguish between the various translators. Explain why the compiler is called an n-pass compiler. What are lexicons? Differentiate between scanning and parsing. What are grammars? What is the need for intermediate code generation phase? What are type checkers? Explain liveliness analysis. Mention the various language processors. 10. What do you mean by array allocation? 11. Briefly explain the following: LL(1) parsing Code generators…

    • 283 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Unix- Operating Systems

    • 1608 Words
    • 7 Pages

    The uniqueness of UNIX The features that made UNIX a hit from the start are: • Multitasking capability • Multi-user capability • Portability • UNIX programs • Library of application software • Security 1. Multitasking Capability Many computers do just one thing at a time, as anyone who uses a PC or laptop can attest. Try logging onto your company's network while opening your browser while opening a word processing program. Chances are the processor will freeze for a few seconds while…

    • 1608 Words
    • 7 Pages
    Powerful Essays
  • Powerful Essays

    Unix Operating System

    • 5458 Words
    • 22 Pages

    overview of Unix operating system. It starts by presenting a brief history of the early development of Unix. It concentrates on main aspects of Unix operating system. Key concepts covered are interactive multi-user operating systems, the design objectives of Unix, file-store organization, text processing and programming, the role of C programming language with regard to portability and reliable system software, process control (signals and fork), error logging and recovery from system failures,…

    • 5458 Words
    • 22 Pages
    Powerful Essays
  • Powerful Essays

    Unix Operating System

    • 2407 Words
    • 10 Pages

    What are The Three Important Parts Of Unix Operating System, Explain Them? Answer: UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops. The UNIX operating system is made up of three parts; the kernel, the shell and the utilities (programs). THE KERNEL: The kernel of UNIX is the hub of the operating system: it allocates time and memory to programs…

    • 2407 Words
    • 10 Pages
    Powerful Essays
  • Good Essays

    Unix

    • 1105 Words
    • 5 Pages

    Introduction to the Unix Operating System Unix is the most widely used computer Operating System in the world. Unix has been ported to run on a wide range of computers, from handheld personal digital assistants to inexpensive home computing systems to some of the worlds' largest super-computers. Unix is a multiuser, multitasking operating system, which enables many people to run many programs on a single computer at the same time. After more than three decades of use, Unix is still regarded…

    • 1105 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    System Programming

    • 30057 Words
    • 121 Pages

    REGULATION 2008 CS54 – SYSTEM SOFTWARE AIM To have an understanding of foundations of design of assemblers, loaders, linkers, and macro processors. OBJECTIVES  To understand the relationship between system software and machine architecture.  To know the design and implementation of assemblers  To know the design and implementation of linkers and loaders.  To have an understanding of macroprocessors.  To have an understanding of system software tools. UNIT I INTRODUCTION System software and machine…

    • 30057 Words
    • 121 Pages
    Powerful Essays
  • Good Essays

    Unix

    • 789 Words
    • 4 Pages

    "UNIX was the first operating system designed to run on ‘dissimilar ' computers by converting most hardware specific commands in machine language into an independent programming language called ‘C '" . UNIX was the basis of AT&T 's telephone system and the government 's wide area network system. Then it became the basis of communication between engineers and scientists, and eventually the basis of communication for everyone worldwide. It has held this remarkable spot since 1969. However, in…

    • 789 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    UNIX and Linux File Management Systems A computer file management system is simply a data structure or a collection of files. It organizes data on a disk into files and directories and gives each file a name, which must be unique in each directory. More advanced file systems have facilities to recover data from system crashes. File management systems utilize disks which have raw partitions. Some database applications prefer raw disks, but most end users and applications require a file system…

    • 1312 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Unix

    • 13586 Words
    • 55 Pages

    Tutorialspoint.com UNIX is a computer Operating System which is capable of handling activities from multiple users at the same time. Unix was originated around in 1969 at AT&T Bell Labs by Ken Thompson and Dennis Ritchie. This tutorial gives an initial push to start you with UNIX. For more detail kindly check tutorialspoint.com/unix What is Unix ? The UNIX operating system is a set of programs that act as a link between the computer and the user. The computer programs that allocate the system resources…

    • 13586 Words
    • 55 Pages
    Good Essays