UNIX Notes | UNIX Handwritten Lecture Notes PDF Free Download

UNIX Notes: UNIX and some other operating systems similar to UNIX are derived from Bell Lab’s UNIX system. Among these operating systems, UNIX is widely known as a powerful multi-tasking and multi-user operating system. UNIX is the first operating system that is written in a high-level language. The basic building blocks of this operating system were developed by K. Thompson, D. Ritchie, and a few others. From this primary building with a hierarchical file system, various generations of UNIX were developed for different kinds of machines. The programmes in UNIX are designed around some fundamental philosophies that include requirements like interoperable, standardized text interface, and single purpose. In UNIX, the same resources can be shared by different users. In this article, you will get complete details about the Lecture Notes and study material of UNIX.

Introduction to UNIX Notes

UNIX was first developed in 1960, and this operating system has been under constant development since then. UNIX is a multi-user, multi-tasking, and stable operating system for desktops, laptops, and servers. UNIX has a GUI (Graphical User Interface) that provides an easy-to-use environment. There are multiple UNIX operating systems, but they all have similarities. Some of the popular UNIX operating systems are MacOS X, Sun Solaris, and Linux. UNIX has become very important in consumer computing, and it is there to stay in future as well. So, if you are a developer interested in learning UNIX or already learning about UNIX, you can get many essential details about UNIX from this article.

UNIX Notes and Study Material PDF Free Download

UNIX is a popular operating system nowadays. Many tech giants look for people with knowledge in UNIX. UNIX is the giant in the world of servers. The subject is vast, and you may have to spend a lot of time delving deeper into the matter. UNIX has complexities which will make you curious to spend more time with the subject and understand it better. However, we have prepared some right study materials for UNIX for you so that things become more comfortable for you.

UNIX Reference Books

There are more than a hundred books for UNIX. But we have done a lot of research and made a list of some famous books for UNIX. These books are widely used by many students worldwide. You can have any two or three books among the list as per your preference and requirement.

  • Cristopher Diaz’s Introduction to UNIX/LINUX
  • M G Venkateshmurthy’s Introduction to UNIX and Shell Programming
  • K. Kushwaha’s Introduction to UNIX and C Programming
  • Linux Command Line by R. Yao & R. C. Perl
  • Casting the Net by Peter H Salus
  • Schaum’s Outline of Operating Systems by J. A. Harris
  • Computer Security by D. Gollmann

UNIX Curriculum

There are different types of courses available on UNIX. The syllabus may be slightly different depending on the kind of course. However, the basic concepts of UNIX remain the same. We have discussed the basic concepts of UNIX that are taught in courses that are directly or indirectly linked to UNIX.

Introduction:

UNIX and ANSI Standards: The POSIX Standards, The POSIX.1 FIPS Standard, The X/Open Standards, The ANSI C Standard, The ANSI/ISO C++ Standards, Difference between ANSI C and C++.

UNIX Files and APIs:

File Types, Relationship of C Stream Pointers and File Descriptors, Directory Files, Hard and Symbolic Links, The UNIX and POSIX File System, The UNIX and POSIX File Attributes, Inodes in UNIX System V, Application Program Interface to Files, FIFO File APIs, Symbolic Link File APIs, UNIX Kernel Support for Files. UNIX File APIs: File and Record Locking, Directory File APIs, General File APIs, Device File APIs.

UNIX Processes and Process Control:

The Environment of a UNIX Process: Introduction, setrlimit Functions, UNIX Kernel Support for Processes, main function, Environment Variables, setjmp and longjmp Functions, getrlimit. Process Control: Introduction, Process Identifiers, fork, vfork, exit, wait, waitpid, wait3, wait4 Functions, Race Conditions, Process Termination, Command-Line Arguments, Environment List, Terminal Logins, Network Logins, Process Groups, Sessions, Controlling Terminal, tcgetpgrp and tcsetpgrp Functions, Job Control, Shell Execution of Programs, Orphaned Process Groups, Memory Layout of a C Program, Shared Libraries, Memory Allocation, exec Functions, Changing User IDs.

Signals and Daemon Processes:

The UNIX Kernel Support for Signals, signal, The sigsetjmp and siglongjmp Functions, Kill, Alarm, Interval Timers, POSIX.lb Timers, Signal Mask, sigaction, The SIGCHLD Signal and the waitpid Function. Daemon Processes: Introduction, Coding Rules, Error Logging, Daemon Characteristics, Client-Server Model.

Interprocess Communication :

IPC Methods, Pipes, Shared Memory, Client-Server Connection Functions, popen, pclose Functions, Coprocesses, FIFOs, System V IPC, Message Queues, Semaphores.

List of UNIX Important Questions

  1. Write a brief description of UNIX.
  2. Explain Filter and its features.
  3. Describe the Kernel and Shell.
  4. What are the main features of Korn Shell?
  5. Name some common shells and write their indicators.
  6. What is the difference between multi-user and multi-task?
  7. You have a file called ABC in the directory 1. Later you add new material to ABC. What changes will take place in the directory, inode, and file?
  8. State the differences between the relative path and absolute path.
  9. How are directories important in a UNIX system?
  10. What are some common network commands in UNIX?

FAQs on UNIX Notes

Question 1.
What is UNIX?

Answer:
UNIX is a multi-user, multi-tasking, and stable operating system for desktops, laptops, and servers. UNIX has GUI (Graphical User Interface) that provides an easy-to-use environment.

Question 2.
When was UNIX developed?

Answer:
UNIX was first developed in 1960, and this operating system has been under constant development since then.

Question 3.
What are some popular UNIX operating systems?

Answer:
There are multiple UNIX operating systems, but they all have similarities. Some of the popular UNIX operating systems are MacOS X, Sun Solaris, and Linux.

Question 4.
What are some best books on UNIX?

Answer:
Some of the best books on UNIX are given below:

  • Cristopher Diaz’s Introduction to UNIX/LINUX
  • M G Venkateshmurthy’s Introduction to UNIX and Shell Programming
  • K. Kushwaha’s Introduction to UNIX and C Programming
  • Linux Command Line by R. Yao & R. C. Perl
  • Casting the Net by Peter H Salus
  • Schaum’s Outline of Operating Systems by J. A. Harris
  • Computer Security by D. Gollmann

Conclusion UNIX Notes

If you want to make your career in the world of server, you must learn UNIX as it is now ruling the world of the operating system. The information provided above will help you to know about this operating system more.