Basic commands common to Linux

1 man command: View Help information

Man command

NAME: A simple description of the command

Synopsis: Instructions for using formats for commands

DESCRIPTION: Detailed instruction information for the command

Opetions: Description of the command options

2 Date command: Show time

3 hostname command: Host name

4 Clear command: Clear screen

5 Exit Command: Exit

6 History Command: Historical commands (can be used with pipe characters)

7 pwd Command: current directory

8 CD command: Switch directories

9 ls command: List directories and files (Ls-al Common)

Cat command: Display file contents

One Touch command: Create a file or modify a file's modified time

DF Command: View file system (df-m using MB)

Alias and Unalias commands: command aliases

echo Command: Display information (equivalent to print)

Export command: Output variable (set variable, environment variable)

ENV command: Show environment variables

PS Command: View process status (PS aux view all processes)

WhoAmI and who command: View current user and all logged-in system location users

SU command: Switch User (su user, no user default switch to root)

grep command: Filtering information (intercepting some information)

WC command: Statistics

The more and less commands: Pagination shows, more cannot page up, less can

23 Pipes | The output of one command as input to another command

Basic commands common to Linux