Mac OS X for Unix Geeks

Chapter 1 The Mac OS X Command line

• OS X is built on an industry-standard UNIX foundation.The Terminal application allows you to access the complete UNIX environment using standard commands, tools, and scripting languages.
• TENEX C shell is the default shell, but OS X uses bash for handling scripts.
• Drag the Terminal's application to the Dock for quick access
• "Enabling the root User" in p.22. root account is disabled by default so that you need to use sudo to perform administration tasks.root account can be enabled in Netinfo Manager(/Applications/Utilities).

Chapter 2 StartUP

• BootX loader:
• hold down Command-V: verberse messages
• holde down command-S: single user mode
• System Initialization:
• /etc/rc.boot
• /etc/rc
• /etc/hostconfig: system services
• /System/Library/StartupItems
• /etc/ttys: /System/Library/CoreServices/loginwindow.app

Chapter 3 Directory Services

Directory services manage information about users and services.
The Directory Service structure is called Open Directory for Mac OS X.

• /etc files
• NetInfo: controlled by Netinfo manager

You can configure Directory Services by using Directory Access application(Applications/Utilities)

Chapter 4 Compiling Source Code

• Compiling Unix/Linux Source Code
• .configure --host=processor-type --build=processor-type
where processor-type can be decided by `uname -v`
• Frameworks
Standard framework directories are located: *