view info about a service unix code example

Example 1: list all services using systemctl

## List all services
systemctl list-units  --type=service

## List running services
systemctl list-units  --type=service  --state=running

## List all svc in simplified way
service --status-all

Example 2: how to check running services in linux

# For CentOS 7
systemctl
systemctl | more
systemctl | grep httpd
systemctl list-units --type service
systemctl list-units --type mount