Linux Load Monitoring Scripts

#!/bin/bash

Date= ' echo $ (date +%y\-%m\-%d\%h:%m:%s) '
Hostname= ' HostName '
ip= ' Ifconfig eth0 | grep "inet addr" | Cut-f 2-d ":" | Cut-f 1-d "" '
serverinfo= ' echo-e '--------$Date--------\ n server: $HostName IP: $IP "'

#删除5天前的监控日志
Logpwd=/var/log/monitor
Logdate= ' echo $ (date-d -5day +%y%m%d) '
loggrep= ' ls $LOGPWD | Grep-c "$LOGDATE"
If [$LOGGREP-GT 0]
Then
RM-FR $LOGPWD/* $LOGDATE. Log
Fi

Echo-e "$ServerInfo \nuptime\n ' uptime ' \nfree-m\n ' free-m '" > $LOGPWD/monitor.log
#监控cpu负载
physicalcpu= ' grep ' physical id '/proc/cpuinfo | Sort-u | Wc-l '
corecpu= ' grep ' core ID '/proc/cpuinfo | Sort-u | Wc-l '
Count_cores= ' echo ' $PhysicalCpu * $CoreCpu | BC '
Count_uptime= ' Uptime |wc-w '
Averageload= ' Uptime | awk ' {print $ ' $count _uptime '} '
Averageint= ' echo $AverageLoad | Cut-f 1-d "." `
If [$AverageInt-gt $count _cores]
Then
Echo-e "$ServerInfo \n15 minutes of load for $averageload, core number $count_cores, more than CPU core number, please handle! >> $LOGPWD/cpu_status_$ (date +%y%m%d). log
ECHO-E "15 minutes of load of $averageload, core number $count_cores, more than the CPU core number, please handle! ">> $LOGPWD/monitor.log
Else
Echo-e "$ServerInfo \n15 min load of $averageload, core number $count_cores, load normal. >> $LOGPWD/cpu_status_$ (date +%y%m%d). log
ECHO-E "15 minutes of load is $averageload, core number $count_cores, load normal. ">> $LOGPWD/monitor.log
Fi
#监控内存使用率
Memtotal= ' Free-m | grep Mem | awk ' {print $} '
Memfree= ' Free-m | grep Mem | awk ' {print $4} '
Memrate= ' echo ' 100-$MemFree *100/$MemTotal "| BC '
If [$MemRate-GT 80]
Then
Echo-e "$ServerInfo \ n Memory utilization $memrate%, greater than 80%, please handle. >> $LOGPWD/mem_status_$ (date +%y%m%d). log
ECHO-E "Memory utilization $memrate%, greater than 80%, please handle. ">> $LOGPWD/monitor.log
Else
Echo-e "$ServerInfo \ n Memory utilization $memrate%, less than or equal to 80%, memory load is normal. >> $LOGPWD/mem_status_$ (date +%y%m%d). log
ECHO-E "Memory utilization $memrate%, less than or equal to 80%, memory load is normal. ">> $LOGPWD/monitor.log
Fi

If [$AverageInt-gt $count _cores]| | [$MemRate-GT 80]
Then
Cat $LOGPWD/monitor.log | Mail-s "$HostName Server load Monitoring alarm" [email protected]
Fi

Linux Load Monitoring Scripts