#!/bin/bash 
cmd='mysql -uslave -ppasswd -P3306 -h 192.168.0.72 -Be' 
status=`$cmd 'show slave status\G'` 
Seconds_Behind_Master=`echo "$status"|awk '/Seconds_Behind_Master/{FS=":";print $2}'` 
Read_Master_Log_Pos=`echo "$status"|awk '/Read_Master_Log_Pos/{FS=":";print $2}'` 
Exec_Master_Log_Pos=`echo "$status"|awk '/Exec_Master_Log_Pos/{FS=":";print $2}'` 
Last_IO_Errno=`echo "$status"|awk '/Last_IO_Errno/{FS=":";print $2}'` 
Last_SQL_Errno=`echo "$status"|awk '/Last_SQL_Errno/{FS=":";print $2}'` 
Slave_IO_Running=`echo "$status"|awk '/Slave_IO_Running/{FS=":";print $2}'` 
Slave_SQL_Running=`echo "$status"|awk '/Slave_SQL_Running/{FS=":";print $2}'` 
  
#nagios status: 
STATE_OK=0 
STATE_WARNING=1 
STATE_CRITICAL=2 
STATE_UNKNOWN=3 
STATE_DEPENDENT=4 
  
if [ "$Slave_IO_Running" != "Yes" -o "$Slave_SQL_Running" != "Yes" ];then 
        echo "Slave_IO or Slave_SQL process exited! Last_IO_Errno:$Last_IO_Errno Last_SQL_Errno:$Last_SQL_Errno" 
        exit $STATE_CRITICAL 
fi 
  
later=$[$Read_Master_Log_Pos - $Exec_Master_Log_Pos] 
  
if [ $later -ge 100 ];then 
        echo "Read_Master_Log_Pos:$Read_Master_Log_Pos Exec_Master_Log_Pos:$Exec_Master_Log_Pos" 
        exit $STATE_WARNING 
fi 
  
if [ $Seconds_Behind_Master -ge 30 ];then 
        echo "Warning: Seconds_Behind_Master:$Seconds_Behind_Master" 
        exit $STATE_WARNING 
fi 
echo "Slave OK-Read_Master_Log_Pos:$Read_Master_Log_Pos Exec_Master_Log_Pos:$Exec_Master_Log_Pos Seconds_Behind_Master:$Seconds_Behind_Master" 
exit $STATE_OK

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