Shutdown
poweroff
Reboot
reboot
Help
help
View IP address
ip addr
ping www.qq.com for detecting the network communication nowhere
Change directory
cd path
View files
cat filename
vi Tools
Edit the file
vi filename
by i edit
Press Esc to exit edit
enter: wq save
Network Service Restart
systemctl restart network
Add a new user
adduser - d user directory -p password new user name
Switch user
su username
Switching home directory
cd ~
Switching to / etc
CD / etc
Understanding the composition of directory permissions
-rw-r -. r-- 1 root root 44 dated 10 31 2018 shells file
drwxr-xr-x. 2 root root 62 dated 11 2018 skel. 4 at the beginning of the folder is a folder d
- indicates that this is the beginning of the file
at the beginning of the representation of d is the folder (directory)
followed by nine characters, 9 characters divided into three groups
of the first set of user authority is a root
privileges second group representing the group of users
of the third group shows another user permissions
r for read permission
w expressed written permission
x represents the implementation of the authority
Create a file vi filename
Create a directory mkdir directory name
Delete the file rm filename
Rm -rf delete directory directory name
How to view help?
Add the parameter --help after the command
Shutdown
poweroff
Reboot
reboot
Help
help
View IP address
ip addr
ping www.qq.com for detecting the network communication nowhere
Change directory
cd path
View files
cat filename
vi Tools
Edit the file
vi filename
by i edit
Press Esc to exit edit
enter: wq save
Network Service Restart
systemctl restart network
Add a new user
adduser - d user directory -p password new user name
Switch user
su username
Switching home directory
cd ~
Switching to / etc
CD / etc
Understanding the composition of directory permissions
-rw-r -. r-- 1 root root 44 dated 10 31 2018 shells file
drwxr-xr-x. 2 root root 62 dated 11 2018 skel. 4 at the beginning of the folder is a folder d
- indicates that this is the beginning of the file
at the beginning of the representation of d is the folder (directory)
followed by nine characters, 9 characters divided into three groups
of the first set of user authority is a root
privileges second group representing the group of users
of the third group shows another user permissions
r for read permission
w expressed written permission
x represents the implementation of the authority
Create a file vi filename
Create a directory mkdir directory name
Delete the file rm filename
Rm -rf delete directory directory name
How to view help?
Add the parameter --help after the command