前提监控端和被监控端SSH免交互登录或者密钥登录。
写一个配置文件保存被监控主机SSH连接信息，文件内容格式：IP User Port

!/bin/bash

HOST_INFO=host.info
for IP in $(awk /^[^#]/{print $1} $HOST_INFO); do
USER=$(awk -v ip=$IP ip==$1{print $2} $HOST_INFO)
PORT=$(awk -v ip=$IP ip==$1{print $3} $HOST_INFO)
TMP_FILE=/tmp/disk.tmp
ssh -p $PORT $USER@$IP df -h > $TMP_FILE
USE_RATE_LIST=$(awk BEGIN{OFS="="}/^/dev/{print $1,int($5)} $TMP_FILE)
for USE_RATE in $USE_RATE_LIST; do
PART_NAME=${USE_RATE%=}
USE_RATE=${USE_RATE#=}
if [ $USE_RATE -ge 80 ]; then
echo "Warning: $PART_NAME Partition usage $USE_RATE%!"
fi
done
done