 TOP相当于Linux下的资源管理器，我们公司有一部分重要的服务器便是通过该命令直接实时监控的。 但是，TOP虽然十分强大，对我们监控却并不是很适合，不能很直观的立刻锁定到重点的数据。更不能利用程序自动完成一些判断了。 因此，我花了一个晚上的时间，完成了下面的这个脚本，只要安装的TOP命令的Linux主机都可以正常使用该脚本！ 它目前还是很初级的版本，所以很简单，甚至很弱，但它也实现了以下一些功能： 1.更亲和的人机界面，将重要的数据如CPU，负载，内存百分比等直接输出到平面上； 2.实现了对前一秒的流量统计； 3.更自由的用户自定义选项，可以通过变量来和直接修改脚本来调整排盘和自己的偏好； 4.自动判断功能，当某一项数值出现异常时（依赖于你的预设值），将会现在在顶部有警告信息。 我将会把这一脚本更加的完善，并完成另一份不依赖于TOP指令的脚本（它主要通过常用命令和/proc文件中获取）。 大家任何有需要的可以直接粘贴过去使用，另外，有任何完善的建议的请直接向我提出来，谢谢。 #!/bin/bash #################################### ## System information listen tool v0.2 ###### ## powered by mcsrainbow ###### #################################### while true do ###Copy the top's content to top.info### top -b1 -n1 >top.info sleep 2 ###Check the flow### typeset in in_old dif_in typeset out out_old dif_out FLOW(){ in_flow1=$(cat /proc/net/dev | grep eth0 | sed -e "s/(.*):(.*)/[1]/g" | awk ' { print $1 }') in_flow2=$(cat /proc/net/dev | grep eth1 | sed -e "s/(.*):(.*)/[1]/g" | awk ' { print $1 }') in_flow_byte=$(expr $in_flow1 + $in_flow2) in_flow=$(expr $in_flow_byte / 1024) out_flow1=$(cat /proc/net/dev | grep eth0 | sed -e "s/(.*):(.*)/[1]/g" | awk ' { print $9 }') out_flow2=$(cat /proc/net/dev | grep eth1 | sed -e "s/(.*):(.*)/[1]/g" | awk ' { print $9 }') out_flow_byte=$(expr $out_flow1 + $out_flow2) out_flow=$(expr $out_flow_byte / 1024) } FLOW in_old=$in_flow out_old=$out_flow sleep 1 FLOW in=$in_flow out=$out_flow dif_in=$(expr $in - $in_old ) dif_out=$(expr $out - $out_old ) ###Clear the Screen### clear ###Define the safe number### servername=Server #The server's name which you running the scrīpts maxload=5 #Warning if the load average bigger than this number maxcpu=50 #Warning if the cpu bigger than is percent minmem=120 #Warning if the memory less than this number (MB) minswap=120 #Warning if the swap less than this number (MB) maxusers=3 #Warning if the user online more than 3 maxzombie=2 #Warning if the zombie process more than 2 ###Check the CPU### cpuinfo=`grep "Cpu(s)" top.info|awk '{print $2}'` cpuinfonumber=` echo $cpuinfo |awk -F "%" '{print $1}'|awk -F "." '{print $1}'` if [ ${maxcpu} -lt ${cpuinfonumber} ] then echo "!!!!WARNING:The CPU used too much!!!!" fi ###Check the Mem### meminfo=`grep "Mem:" top.info|awk '{print $4 "/" $2}'` usedmem_kb=`grep "Mem:" top.info|awk '{print $4}'|awk -F "k" '{print $1}'` usedmem_mb=$(expr $usedmem_kb / 1024) totalmem_kb=`grep "Mem:" top.info|awk '{print $2}'|awk -F "k" '{print $1}'` totalmem_mb=$(expr $totalmem_kb / 1024) freemem_mb=$(expr $totalmem_mb - $usedmem_mb) if [ ${freemem_mb} -lt ${minmem} ] then echo "!!!!WARNING:The Memory used too much!!!!" fi totalmem_kb_percent=$(expr $totalmem_kb / 100) percentmem=$(expr $usedmem_kb / $totalmem_kb_percent) ###Check the Swap### swapinfo=`grep "Swap:" top.info |awk '{print $4 "/" $2}'` usedswap_kb=`grep "Swap:" top.info |awk '{print $4}'|awk -F "k" '{print $1}'` usedswap_mb=$(expr $usedswap_kb / 1024) totalswap_kb=`grep "Swap:" top.info |awk '{print $2}'|awk -F "k" '{print $1}'` totalswap_mb=$(expr $totalswap_kb / 1024) freeswap_mb=$(expr $totalswap_mb - $usedswap_mb) if [ ${freeswap_mb} -lt ${minswap} ] then echo "!!!!WARNING:The Swap used too much!!!!" fi totalswap_kb_percent=$(expr $totalswap_kb / 100) percentswap=$(expr $usedswap_kb / $totalswap_kb_percent) ###Check the users online### useronl=`grep "load average:" top.info |sed 's/user.*//'|awk '{print $(NF)}'` if [ ${maxusers} -lt ${useronl} ] then echo "!!!!WARNING:The User online is more than 3!!!!" fi ###Check the load average### loadavg=`grep "load average:" top.info |sed 's/.*load average: //'|awk -F "," '{print $(NF-2)}'` loadavgnumber=`grep "load average:" top.info |sed 's/.*load average: //'|awk -F "," '{print $(NF-2)}'|awk -F "." '{print $1}'` if [ ${maxload} -lt ${loadavgnumber} ] then echo "!!!!WARNING:The Load Average is more than 5!!!!" fi ###Check the zombie### zombie=`grep "Tasks:" top.info |awk '{print $(NF-1)}'` if [ ${maxzombie} -lt ${zombie} ] then echo "!!!!WARNING:The Zombie Process is more than 2!!!!" fi ###Check the most process### processtitle=`grep "TIME+" top.info` processinfo=`sed -n 8p top.info` ###Show me the number just have counted### echo "Server CPU LOAD ZOMBIE USER IN OUT MEM SWAP " echo "${servername} ${cpuinfo} ${loadavg} ${zombie} ${useronl} ${dif_in}KB/s ${dif_out}KB/s ${meminfo} ${percentmem}% ${swapinfo} ${percentswap}% " echo "------------------------------------------------- -------------------" echo "${processtitle}" echo "${processinfo}" done |
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