1.Enable a service to start automatically
1) chkconfig --level 3 SERVICENAME on (old command)
2) systemctl enable SERVICENAME.service (new command)
2.Disable a service to start automatically
1) chkconfig --level 3 SERVICENAME off (old command)
2) systemctl disable SERVICENAME.service (new command)
3.View service status(old command and old command)
1) service SERVICENAME status
2) systemctl status SERVICENAME.service (Service details)
systemctl is-active SERVICENAME.service (Show only if Active)
4.Add custom service
1) chkconfig --add SERVICENAME (old command)
2) systemctl load SERVICENAME.service (new command)
5.Delete service
1) chkconfig --del SERVICENAME (old)
2) Stop application,Delete the appropriate configuration (new)
6.Show all started services
1) chkconfig --list (old command)
2) systemctl list-units --type=service (new command)
7.Start a service
1) service SERVICENAME start (old command)
2) systemctl start SERVICENAME.service (new command)
8.Stop a service
1) service SERVICENAME stop
2) systemctl stop SERVICENAME.service
9.Restart a service
1) service SERVICENAME restart (old command)
2) systemctl restart SERVICENAME.service (new command)