【監控】Nagios-NRPE指令碼傳回值

自訂Nagios NRPE指令碼EXIT退出值和nagios狀態都應關係：

狀態	EXIT退出值	輸出	例子
OK	0	echo "OK - it's ok."	echo "OK - it's ok." exit 0
WARNING	1	echo "WARNING - it's warning."	echo "WARNING - it's warning." exit 1
CRITICAL	2	echo "CRITICAL - it's critical."	echo "CRITICAL - it's critical." exit 2
UNKNOWN	3	echo "UNKNOWN - it's unknown."	echo "UNKNOWN - it's unknown." exit 3

錯誤的例子：

shell指令碼中echo和退出值：

echo "OK - it's ok."

exit 1

此時，Nagios會顯示：

這條服務對應的狀態是”WARNING“，但是輸出的資訊是”OK - it's ok."