CentOS系統中Filebeat版本升級方法如下：
sudo cp -r /etc/filebeat /etc/filebeat.bak，sudo cp -r /var/lib/filebeat /var/lib/filebeat.bak。sudo yum update。sudo yum install filebeat（若已安裝則會自動升級）。sudo systemctl restart filebeat。filebeat version。wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-<version>-linux-x86_64.tar.gz。sudo systemctl stop filebeat。sudo tar -xzf filebeat-<version>-linux-x86_64.tar.gz -C /usr/share/filebeat，然后移動或創建符號鏈接。sudo systemctl start filebeat。
