可以用symble link的方式，將服務檔放到/etc/systemd/system/目錄下，讓systemd管理服務。
更改service檔後，需執行以下指令，讓systemd重新載入設定檔:
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sudo systemctl daemon-reload
sudo systemctl enable appname
sudo systemctl start appname
移除服務:
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systemctl stop [servicename]
systemctl disable [servicename]
rm /your/service/locations/[servicename]
# and symlinks that might be related
rm /your/service/locations/[servicename]
systemctl daemon-reload
systemctl reset-failed