UNIX System Management: File system hierarchy

To complete this chapter, you can do the following things:

Describes why you should distinguish between dynamic file systems and static file systems

Describes the main contents of/sbin,/usr,/stand,/etc,/dev,/var (operating system-related directories)

Describes the main contents of/opt,/etc/opt, and/var/opt (application-related)

Finding files in the file system using Find, and the Whereis command

Introduction to File System examples

Many system management tasks require http://www.aliyun.com/zixun/aggregation/13879.html "> system administrators know the location of system and application configuration files and log files, and can operate on these files." So knowing the file system organizational structure allows you to find these files and work on system management.

The standard at&t SVR4 file system layout is described below.

Files in a file system can be categorized by different methods. Examples can be divided into static and dynamic files, executables, and configuration files. These classification principles form the logical structure of the file system and can simplify the tasks of system administration.

File system can be divided into static and dynamic two parts

Files and directories in the file system are divided into static and dynamic categories. Content in static files and directories is rarely changed unless a patch is installed or the operating system is installed or the application is installed. executable files, libraries, and system startup tools are all considered static.

Dynamic files and directories are frequently changed. Configuration file. Temporary files, and user files are considered dynamic.

Distinguishing between dynamic and static data provides the following benefits:

System backup Easier

Easier disk space management

Executable files and configuration files

The configuration data and executable code are saved separately. Saving the configuration file and executable file separately provides the following benefits:

Changes to configuration data are not lost when the operating system is upgraded.

Executable files can be easily shared across the network, and each host's own profile can be stored on the local host