要使用systemctl管理Linux服務進程，可以使用以下命令：
sudo systemctl start servicename
sudo systemctl stop servicename
sudo systemctl restart servicename
sudo systemctl reload servicename
sudo systemctl status servicename
sudo systemctl enable servicename
sudo systemctl disable servicename
sudo systemctl list-unit-files --type=service
注意：以上命令中的"servicename"需要替換為具體的服務名稱。
