Simple introduction of various folders in Mac system

First, Description:

Mac OS X, a UNIX-based core system that enhances system stability, performance, and responsiveness. It delivers unmatched 2D, 3D, and multimedia graphics performance as well as extensive font support and integrated PDA functionality by leveraging the benefits of dual processors for Chenduo processing technology. Mac OSX supports almost all MacOS9 applications through the classic environment, and the intuitive Aqua user interface gives Mac Intosh a whole new level of ease of use.

Second, Mac hard disk in each folder

Open Macintosh HD you will find four folders, respectively-application (applications), system, user, database (library). There are a number of folders in each of the four folders.

1, Applications:

This is, of course, the place to store all kinds of software.

2. System:

Contains system software installed by Apple. This resource is required for the system to function properly and is located in the startup file.

/system/library/cfmsupport

Cfm,code Fragment Manager, equivalent to the common library used by older Mac OS applications. To ensure the consistency of your Mac OS environment. It is stored in a file that is extremely important in OS X---carbonlib, which is a must-have for the execution of the charcoal software. There are also Discrecordinglib (CD/R-RW libraries), Opengllib (OpenGL), Stbclib (C language).

/system/library/dtds

As a repository for the various XML files used in the system, and the format of the file to define the eucalyptus. Mac OS X data in the form of instruments, respectively, by the three-file Eucalyptus management, respectively, PROPERTYLIST.DTD,KEYBOARDLAYOUT.DTD and sdef.dtd three-file eucalyptus. In the DTD, the full name is document Type Definition. In addition, the. plist file is also written by XML.

/system/library/extensions

In fact, this is the place to store hardware drivers, Apple does not call the driver for driver, but is called extension.

/system/library/filesystems

It is mainly used to store OS X and what file formats are supported. Example with standard AppleShare (Apple file sharing standard), ISO 9660/FTP/HFS and Internet use such as samba.

/system/library/helpviewer

All files and documents related to MAC OS help are stored here.

/system/library/find

is the search function. is a multi-lingual counterpart.

/system/library/openssl

The full name is secure Sockets Layer. is a set of communication encryption technology, generally used on the Web server, the password will be transmitted with an encrypted signal processing, thereby reducing the possibility of third parties to successfully steal data. Generally applies to URLs that are opened with HTTPS. Mac OS X's built-in webserver---Apache, which also includes this service.

/system/library/coreservices/dock

This is one of the features of OS X, which is the information about the dock.

/system/library/coreservices/finder.app

This is especially because it is an application, not a file, and Finder.app is responsible for controlling all the resources on the entire OS.

/system/library/coreservices/kerberos

Network authentication technology developed by MIT (Massachusetts Institute of Technology). The ability to easily log in to a system with a single ID is a proven technology.

/system/library/coreservices/menu Extras

The original file with the tool on all systems above the status bar, double-click to add the file directly on the status bar.

3. Library:

System Resource Library.

For example, fonts, ColorSync configuration, preferences, and plugins should all be installed in the appropriate subdirectory of the Library directory.

Application support

Contains application-related data and supporting files, such as third-party plugins, help apps, templates, and additional resource files that apps use but don't need to support running. By convention, all of this content is stored in subdirectories named after the application name.

Assistants

Contains programs that help users with configuration or other tasks.

Colorpickers

Contains resources for selecting colors, depending on a model, such as HLS (color angle, saturation, brightness) selector, or RGB selector.

ColorSync

Contains the ColorSync configuration and scripts.

Components

Contains the system packages and extensions.

Contextual Menu Items

Contains plugins for extending the system-level menus.

Dictionaries

Contains the system's own dictionary files.

Desktop Pictures

Desktop Picture directory.

Documentation

Contains documentation files and Apple help packs that are referenced by computer users and administrators. (The Apple help package is in the helps subdirectory.) In the local domain, this directory contains the Help packs that Apple has released (excluding developer documentation).

Extensions

Includes device drivers and other kernel extensions. (only exists in the system domain.) )

Favorites

Contains aliases that point to frequently accessed folders, files, or Web sites. (exists only in the user domain.) )

Fonts

Contains font files for display and printing.

Java

Contains the Java runtime environment.

Startupitems

Includes systems that run at System import time and third-party scripts and programs. (See the System Launcher topic for more information on how to start the system at the time of import).

4. User:

Contains a user-specific resource. There is also a library folder, different with the top of the library, is designed for your account services, which put your own personalized fonts, configuration files and so on.

Applications

Contains apps that are available only to the current user.

Desktop

Contains the desktop items that the Finder displays on the currently logged on user's desktop.

Documents

Contains the user's personal documents.

Downloads

Contains the various documents that are downloaded.

Library

Contains application settings, preferences, and other user-specific system resources.

Documentation

Contains documentation files and Apple help packs that are referenced by computer users and administrators. (The Apple help package is in the helps subdirectory.) In the local domain, this directory contains the Help packs that Apple has released (excluding developer documentation).

Extensions

Includes device drivers and other kernel extensions. (only exists in the system domain.) )

Third, the hard disk also has a few hidden folders 1, Bin

Basic UNIX instructions are stored.

2, Sbin

The storage place of UNIX system instructions is the comparison advanced instruction.

3. etc

System configuration file Storage area.

4. var

Frequently changed files are placed here, for example, each log file of eucalyptus.

5. tmp

System's staging archive.

6. usr

UNIX's user-specific file folder.

Original: http://www.jb51.net/os/MAC/130901.html

Simple introduction to individual folders in Mac System (GO)