• Course organization over the semester
• Basic concepts in operating systems. Functions of an operating system.
• Logical structure and memory layout of a process
• Function  of kernel and notion of system calls,  application programming interfaces.
• System programs and Command Shell
• See Lecture Notes 1 on Moodle

Reference materials for the first two weeks:

From Silberschatz Book "Operating Systems Concept" (9th Edition)

Read Chapter 1

Read from Chapter 2: Section 2.1 through 2.7

September 14

• UNIX File,  Directories, Links
• File system concepts, directory organization, file access methods, directories and paths, working directory;
• File permissions and attributes, users and groups, directories, hard and soft links
• Basic UNIX commands (cp, mv, ls, cat, tail, head, more, pwd, cd, ps, ln, umask etc)
• Environment variables, $variables, Doube/Single Quoted Strings
• See Lecture Notes 2 on Moodle    
• For file systems concepts refer to Chapter 10 from the textbook by Silberschatz book

September 14

• I/O streams, stdin, stdout, stderr, I/O redirection
• Notion of pipes; using joining commands using pipes
• Shell variables, history
• Bash and Tcsh shells; shell scripting language constructs for tcsh and bash scripting,  shell syntax, shell variables, control structures; regular-expression syntax; shell scripts; environment variables, search paths, configuration files.
• Unix commands and command-line syntax; sources of information - man pages, i
• files and directories; commands that operate on files and directories; commands that give information on processes and the OS;
• See Lecture Notes 3 on Moodle

September 19, 21

• Filter programs -- grep, sort, sed
• Regular expressions -  grep, and egrep utility programs
• See Lecture Notes 4 on Moodle

• File system APIs and System calls for I/O and  file operations - open, close, read, write, seek, dup, fcntl, sync;
• Refer to Robins and Robins Book:
• Chapter 2 (Sections 2.3, 2.4, 2.5, 2.6)
• Chapter 4 (Sections 4.1, 4.2, 4.3)
• Chapter 5 (Sections5.1 and 5.2)
• PLEASE see the example programs on File I/O on Course Webpage
• See Lecture Notes 5 on Moodle

• File system System calls for I/O and  file operations - open, close, read, write, lseek, dup, fcntl, sync; character devices and ioctl; inheritance of file descriptors between parent and child processes; non-blocking and asynchronous I/O, use of select()
• String operation in C
• C Library functions for File I/O Operations.
• Error handling in C programs
• Example of a File copy program
• See Lecture Notes 6 on Moodle

Additional reference materials can be found in Chapter 11 (File System Interface)  from the textbook by Silberschatz book "Operating System Concepts"

• C Standard I/O Library Functions for File I/O
• Select function
• Devices (/dev), device types (/dev/proc on Linux),
• See Lecture Notes 7 on Moodle

October 3, 5, 10, 12

• Process Management (4 lectures)
• Process lifecycle and process states; process scheduling, process priority, interprocess communication.
• System calls for process creation - fork, exec, wait; process priority; process memory image, process exit status; relationship between parent and child processes; zombies & daemons, background execution of a process;
• See Lecture Notes 8 on Moodle

• Signal Handling in Unix
• See Lecture Notes 9 on Moodle

• Process Scheduling
• See Lecture Notes 10 on Moodle
• Please refer to Silberschatz, Galvin, Gagne book (9th Edition)  -- Sections 6.1,  6.2,  and 6.3

• Concurrent Programming and Process Synchronization (3 lectures)
• Threads
• Process Synchronization
• Atomic operations, critical sections; synchronization and mutual exclusion;
• Mutual exclusion using shared variables
• Hardware support for process synchronization
• Semaphores
• Classical problems in process synchronization: Producer-consumer problem, Reader-Writer Problem,  Dining Philosophers problem
• See Lecture Notes 11 on Moodle

• Concurrent Programming with POSIX Threads: ( 2 lectures
• Creating, managing, terminating threads;
• Using POSIX mutex and condition variables;
• POSIX thread scheduling parameters;
• See Lecture Notes 12 and 3 on Moodle

• Interprocess communication using TCP/IP Sockets
• See Lecture Notes 14 on Moodle  
• Interprocess communication using TCP/IP Sockets (continued)
• See Lecture Notes 15 on Moodle

November 14, 21, 28, 30

• Memory Management
• Virtual Memory concepts
• See Lecture Notes 16 on Moodle  

• System Deadlocks
• Please refer to Silberschatz, Galvin, Gagne book  --  Chapter 7
• See Lecture Notes 17 on Moodle