Red Hat - Linux Application Programming

The Linux Application Programming hands-on course teaches you how to use the Linux system calls and library functions for writing system and application programs in C.  

• Learn to write portable, open programs that range in complexity from simple file I/O to network applications.  
• Gain experience in responding to errors and exceptions, manipulating file attributes and handling signals and other inter-process communication methods. 

Attendees to this course should have a good foundation in the essentials of the C programming language, including pointers, structures, unions, and typedefs.

Students should also have previous practical command line experience with Linux or a Linux-like commercial operating system.

Chapter 1 - Introduction to the Linux Environment

• How Linux is organized and why.
• The GNU programming environment 

• Arguments to a program. 
• Retrieving information from the environment.
• How to use getopt() effectively.
• Discovering the date and time
• Getting system information.

• Library functions and system calls for I/O 
• Getting file status information with stat()
• Processing directories and directory entries.

• How to start new processes and "change their image"
• fork() and exec()
• Sending event-type messages to processes
• signal(), kill(),
• Other signal handling functions

• The pipe() and popen() calls
• Named pipes 

• Linux and IPC.
• Shared memory
• Message queues
• Semaphores

• The Berkeley socket interface
• Introduction to TCP/IP
• Sockets in TCP and UDP
• Unix domain sockets
• Raw IP sockets
• Resolving host and service names

• Introduction (Why use threads?)
• POSIX threads
• How Linux implements threads