Linux directory structure and shortcut keys

1. Tree-Shaped directory structure

2. Top level: root directory

/bin binary Executable command

/dev Device Special files

/etc system administration and configuration files

/ETC/RC.D startup configuration files and scripts

The base point of the/home user Master Directory

/lib Standard Programming Library

/sbin Super Admin command

/tmp Public temporary file storage point

/root the system administrator's main command

The/MNT system provides this directory to allow users to temporarily mount other file systems

/lost+found This directory is usually empty, the system is not properly shutdown and left "homeless" files

/proc virtual directory, which is the mapping of system memory

/var overflow area for some large files

/USR applications and files are almost always in this directory

3. Character Login

A) graphical interface--"character Terminal: CTRL+ALT+FN

b) Character Terminal--"character Terminal: ALT+FN

c) Character terminal--"graphical interface: ALT+F7

4. System commands

1) command word "options" "Parameters"

I. Options: Specific functions for adjusting commands

Ii. Parameters: Objects for command manipulation, such as files, directory names, etc.

2) Common shortcut keys

A) Tab key: Auto-completion

b) backslash "\": Force line break

c) Ctrl+u: Empty to the beginning of the line

d) Ctrl+k: Empty to end of line

e) Ctrl+l: Clear Screen

f) Ctrl + C: cancel this command edit

3) View Help

A) Help,-help,man,info, etc.

Linux directory structure and shortcut keys