Centos Cheat Sheet

https://www.shiftescape.com/2021/12/how-to-lamp-on-centos-7-with-phpmyadmin.html

https://www.shiftescape.com/2021/12/how-to-cron-job-in-centos-78.html

https://linuxhint.com/screen-command-centos/

 Listing process on port

$ netstat -ltnp | grep -w ':80' 

List all processes

# ps -A

for finding pid of particular process

# pidof mysqld

to kill a process

kill -9 3139