Linux System basic Command use

SSH user name @ip address Xshell Login

Useradd User name Add user

Su-user name jump to user record

[Email protected] ~]#

Current logged on user @ hostname current directory

~ Represents the home directory of the currently logged in user

Man command to view command Help information

Ifconfig Viewing network interface status

IP Addr View IP address

IP a View IP address

Route-n View routing Status

Service Network restart restart NIC

Clear Clear Screen

PWD Print current directory

CD Switch Directory

LS lists file directories and file information

-l long Format display file (contains properties, time ... ）

-a displays all files in this directory (including hidden files)

-D View the directory itself

Ls-l = ll

Under Linux systems, file types (three common types)
-* File
d * Directory (similar to Win7 folder)
L * Connection (similar to Win7 under the shortcut)

Cat View the contents of the file

Touch build files (rarely used, basically VI)

mkdir Creating a Directory

-P recursive creation of multilevel directories

RM Delete a file or directory

-R Delete directory (not add delete file)

-F Force Delete

CP source File destination directory * Copy files or directories

-r Copy Directory (does not add to copy files)

-a copy all (include properties, permissions ...) ）

MV Move or rename files

More Paging View file contents

Head-5 file name to view the first 5 lines of information

tail-10 file name View 10 lines of information

Du statistics directory or file capacity

-S

-H

grep finds a matching string in a file

-N Display Line number

Find files or directories in the directory that match the criteria

Syntax: Find target matching criteria for find (can not use quotation marks)

-name

-type d (directory) f (file)

Linux System basic Command use