统计cpu脚本

top  -n 1 -c| awk  -F  ‘[, %]+‘  ‘NR==8 {print $13}‘

top  -n 1 -c| awk  -F  ‘[, %]+‘  ‘NR==3 {print $13}‘

#!/bin/bash
LANG=en_US.UTF-8
cpuUsed=` top  -n 1| awk  -F  ‘[, %]+‘  ‘NR==3 {print 100-$11}‘ `
diskUsed=$( df  -h| awk  -F  ‘[ %]+‘   ‘/\/$/{print $5}‘ )
logFile= /tmp/jiankong .log
  
function  Sendmail(){
     mail -s "监控报警"  user@oldboyedu.com <$logFile
}
  
function  check(){
     if  [ ` echo "$cpuUsed>80" | bc ` - eq  1 -o $diskUsed - ge  85 ]; then
        echo "CPU使用率：${cpuUsed}%，磁盘使用率：${diskUsed}%" >$logFile
       Sendmail
     fi
}
  
function  main(){
     check
}
 
main