[Original] Linux Classroom-Study notes-course 3. Linux directory structure introduction and kernel and shell analysis

I. Description of the Catalogue

1.1 Bin General user, executable system built-in commands

1.2 Sbin system administrator, executable system built-in commands

1.3 Boot boot file directory, start the relevant files are saved in this

1.4 Dev Device Management files, such as mobile hard drives, USB drives, optical drives, etc.

1.5 Home User home directory, in general: A user will have a corresponding folder, named after the user name

1.6 lib dynamic link library shared library, type. dll file library for Windows

• It is designed to share and reuse some components, improve program development efficiency, etc.
• If you rely on too many libraries, there will be drawbacks, such as prompting the installation of various components missing, such as Windows only rely on the. NET Framework, install only once, the installer only need to click the next step)

1.7 etc Global configuration file

1.8 Root root user's home directory

1.9 usr file system, not a user in Windows, equivalent to a Windows System window directory that stores files such as system fonts, applications, etc.

1.10 mnt Disk Temporary mount

Second, Shell

Shell is the "shell" of the user interacting with the kernel, call the kernel---called hardware, user---Shell

User graphical interface Shell GUI

Command line Shell CLI

[Original] Linux Classroom-Study notes-course 3. Linux directory structure introduction and kernel and shell analysis