这篇文章主要介绍了如何实现获取磁盘IO与系统负载Load的shell脚本，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

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1，提取系统负载信息

代码如下:

#!/bin/sh
host=$(hostname)
channel=$(hostname | sed 's/[0-9]//g')
runday=$(date +%Y-%m-%d)
IPhost=$(/sbin/ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}')
i=1
 while [ $i -le 120 ];do
 rundaytime=$(date "+%Y-%m-%d %H:%M:%S")
 /bin/cat /proc/loadavg | awk -F " " '{print "'"$rundaytime"'"","$1","$2","$3","$4","$5}' >> /tmp/$(hostname)-${runday}load.txt
 /usr/bin/sar -u 1 1 | grep -v Average | /bin/sed -n '4,$p' | awk -F " " '{print "'"$rundaytime"'"","$4","$6","$7","$9}'  >>  /tmp/$(hostname)-${runday}sar.txt
 i=$((i+1))
 sleep 59
done
awk -F "," '{print "'"$host"'"",""'"$channel"'"",""'"$IPhost"'"","$1","$2","$3","$4","$5}' /tmp/$(hostname)-${runday}sar.txt > /tmp/$(hostname)${runday}sar.txt
awk -F "," '{print "'"$host"'"",""'"$channel"'"",""'"$IPhost"'"","$1","$2","$3","$4","$5","$6}' /tmp/$(hostname)-${runday}load.txt  > /tmp/$(hostname)${runday}load.txt
rm -rf /tmp/$(hostname)-${runday}sar.txt
rm -rf /tmp/$(hostname)-${runday}load.txt

2，代码2

代码如下:

#!/bin/sh
PDIR=/monitor/nagios/shell/sarlog
runday=$(date +%Y-%m-%d)
TmpDir=/monitor/nagios/tmp
for i in `/bin/cat /monitor/nagios/shell/sarlog/machine.lst`
do
   /usr/bin/scp ${PDIR}/sarlog.sh ${i}:/root && /usr/bin/rsh ${i} /root/sarlog.sh &
done

3，代码3

代码如下:

#!/bin/sh
PDIR=/monitor/nagios/shell/sarlog
runday=$(date +%Y-%m-%d)
TmpDir=/monitor/nagios/shell/sarlog/log
Machinelst=/monitor/nagios/shell/sarlog/machine.lst
for i in `/bin/cat /monitor/nagios/shell/sarlog/machine.lst`
do
   /usr/bin/scp ${i}:/tmp/*${runday}sar.txt ${TmpDir}
   /usr/bin/scp ${i}:/tmp/*${runday}load.txt ${TmpDir}
done
/bin/cat ${TmpDir}/*${runday}sar.txt >> ${TmpDir}/Tmp${runday}.txt
/bin/cat ${TmpDir}/*${runday}load.txt >> ${TmpDir}/${runday}loadResult.txt
count=1
Line=$(cat ${TmpDir}/Tmp${runday}.txt |wc -l)
>${TmpDir}/Result${runday}.txt
while [ "$count" -le "$Line" ]
do
        Idle=$(sed -n "${count}p" ${TmpDir}/Tmp${runday}.txt | awk -F "," '{print $8}')
        Busy=`echo "scale=2;100-$Idle"|bc`
        sed -n "${count}p" ${TmpDir}/Tmp${runday}.txt | sed  "s/$/,$Busy/g" >> ${TmpDir}/${runday}sarResult.txt
        let count=count+1
done
/usr/local/mysql/bin/mysql -u root -D nagios -pbj7n48dM  <   load data infile '${TmpDir}/${runday}sarResult.txt' into table t_daily_stats FIELDS TERMINATED BY  ',';
   load data infile '${TmpDir}/${runday}loadResult.txt' into table t_daily_load FIELDS TERMINATED BY  ',';
EOF
rm -rf ${TmpDir}/*${runday}sar.txt
rm -rf ${TmpDir}/*${runday}load.txt
rm -rf rm -rf ${TmpDir}/*${runday}.txt

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