How to check os version on centos

Check the version of the system through the command line in Centos

How does docker load images from local

Mirror from local path test

How to test a port in windows

Use telnet to connect to test www.cmdhelp.com port 81

How to delete data from mysql table

Delete the data with id equal to 1 in the table_test table

How to restart the operating system in linux

Restart the operating system in Linux

How to turn off the firewall in Linux

Turn off the firewall to start automatically in Linux 7

How to start firewall in Linux

Turn on the firewall in Linux 7

How to stop firewall in Linux

Turn off the firewall in Linux 7

How to check firewall status in Linux

View firewall status in Linux

How to check linux port occupation

Check the occupancy of a certain port in linux,

I hope to help every developer quickly find the commands they need. Of course, you can also add your own commonly used commands for easy searching.