Linux Basic (i)

1. Network-installed Linux system: Linux ip=172.16.x.1 netmask=255.255.0.0 gateway=172.16.0.1 ks=http://172.16.0.1/class.cfg

2. Linux Fundamentals:

consist of a small program with a single purpose; Assemble a small program to complete a complex task

All documents

Try to avoid capturing the user interface, just not interacting with the user

The configuration file is saved in plain text format

3. Interfaces that interact with the user are used by the shell

GUI interface: Gnome (developed by C), KDE (developed by C + +)

CLI interface: Many shells (bash, csh, zsh, Ksh, tcsh)

Command prompt, prompt

#: Root

$: Normal User

Command format: Command + options (fixed how the command is executed, divided into short/long options, can have multiple) + parameters (Command object, such as directory), note: Linux strictly case-sensitive

4. The Linux command line interface provides multiple virtual terminal logins (default 6, which can be changed), and is switched back and forth via ctrl+alt+ (F1-F6). The command line can be switched to graphical interface GUI interface "Ctrl+alt+f7" through StartX &_ toswitch the command line and graphical interface, and open Terminal can also be opened in the graphical interface, which is called Analog terminal.

5. Three users (root, student, vistor), how do I switch?

Su:switch User

#su [-l] user return with #exit

6. Change the password

#passwd (Modify Administrator password) consider password complexity rules

This article is from "G-lab Guo Director" blog, please be sure to keep this source http://atomguo.blog.51cto.com/744135/1767906

Linux Basic (i)