02linux Basic Operation

◊ Basic framework:

A) Login

b) Password file

c) Simple command

D) Man

1. Login:

1) StartX text interface into graphical interface

Ctrl + Alt + Backspace from the graphical interface into the text interface

2) 3 Files:

/ETC/PASSWD (password file stored (username))

/etc/shadow (store the actual password)

/etc/inittab (directly into the text interface or graphical interface when booting)

3) 3 Types of terminals:

Physical terminal (set of keyboards and monitors)

Virtual Terminal:

6 Virtual terminals (text interface): Alt +F1~F6

Virtual: Shared meaning, shared keyboard and monitor.

Simulation terminal/Remote terminal (simulation with the application software, the client is connected to the server via the network, using the SSH protocol, can use SECURECRT application software)

2 , simple commands:

Date

Date--set= "A string" (with the man to help understand the specific information)

Cal: Calendar

Who: See who is using the system

Who am I: see who is currently

BC Calculator

3 , Mans

Man-a TTY (Find all TTY-related help)

The Man Handbook has a total of 8 chapters, which you can enter by command man man to view

4 , Details:

LANG = EN (change to English environment)

Ctrl+d: Input Terminator

CTRL + C: interrupts the foreground process and signals the interrupt, but the interrupt signal can be captured by other processes.

02linux Basic Operation