How to check and list running services (Centos / RHEL)

Reference

https://www.cyberciti.biz/faq/check-running-services-in-rhel-redhat-fedora-centoslinux/

How to Manage ‘Systemd’ Services and Units Using ‘Systemctl’ in Linux

Syntax.

systemctl
systemctl | more
systemctl | grep httpd
systemctl list-units --type service
systemctl list-units --type mount

List all services.

systemctl list-unit-files