Linux OS Basics

Linux Fundamentals

1. The freedom to run the program for any purpose

2. The freedom to learn and modify the source program

3. The freedom to redistribute programs

4. The freedom to develop derivative versions based on a source program

The Basic Law:

1. All Documents

2. Short-sized and single-purpose programs

3. Combine small programs to complete miscellaneous tasks

4. Avoid capturing the user interface as much as possible

5. Save the configuration data to a text file

Publisher, release version

File storage path, name, syntax format

Software Management is different

Default tools are different

http://mirrors.163.com/NetEase Mirror Site

Virtual machine Software:

VMware Workstation:32bit platform->64bit requires support for hardware virtualization

VirtualBox

GUI Interface: graphical interface

CLI Interface: Command line interface

Command prompt, Prompt,bash (shell)

#:root

$: Normal User

Command:

Command format:

Command option Parameters

Options:

Short Options:-

Multiple options can be combined:-a-b =-ab

Long options:--

Long options cannot be combined

Parameters: The Action object of the command

To use the voucher:

Root,redhat

Virtual Terminal (Terminal): Default is 6

Toggle---ctrl+alt+f1 .... F2

Start graphical interface: StartX &

Toggle---Crtl+alt+f7

Gui:

Gnome:c

Kde:c++

XFace

Cli:

Sh,bash,csh,zsh,ksh,tcsh

Su:switch User Switch users

# su [-l] User name

# passwd

Password complexity rules are required for normal user passwords

Linux OS Basics