Shell script monitors embedded Linux system business, CPU, memory, etc.

Bash in custom cards is not available, and standard SH is used to complete system and business monitoring

#! /bin/sh#process_name= "/guard /aps /sa /zyguard" process_name= "/MP /MCU" #获取主机IP地址ip = ' ifconfig eth0 |grep  ' inet addr "| cut -f 2 -d ": "|cut -f  1 -d  " " ' gstr= "/guard" space= " " first_process= "" #获取初始业务进程号for  i in $ process_namedoif [[  $i  ==  $gstr  ]]thenbf_process= ' ps |grep  $i |grep -v  grep|grep -v  '/bin/bash ' |awk  ' {print $1} ' first_process= $First _process$i ': ' $Bf _ Process$spaceelsebf_process= ' ps |grep  $i |grep -v grep|awk  ' {print $1} ' First_ process= $First _process$i ":" $Bf _process$spacefidonewhile truedofor_num=1sleep 3second_process= "" # Second get business process number for i in  $Process _namedoif [[  $i  ==  $gstr  ]]thenbs_process= ' ps |grep  $i |grep -v grep|grep -v  '/bin/bash ' |awk  ' {print $1} ' Second_ process= $Second _process$i ":" $BS_process$spaceelsebs_process= ' ps |grep  $i |grep -v grep|awk  ' {print $1} ' Second_ process= $Second _process$i ":" $Bs _process$spacefidoneecho  "first_process:" $First _processecho  "Second_ Process: "$Second _process# See if all business processes have changed, output to log file for j in  $Process _namedoecho  $jOne _f_ Process= ' echo  $First _process|awk -v t= "${for_num}"   ' {print  $t} ' one_s_process= ' echo   $Second _process|awk -v t= "${for_num}"   ' {print  $t} ' for_num=$ ((for_num+1)) echo  " One_f_process: "$One _f_processecho " one_s_process: "$One _s_processif [[ " $One _f_process " !=   "$One _s_process"  ]]thentime_now= ' Date ' echo  $Time _nowecho  $jecho   $One _s_processecho   $One _f_processecho -e  $Time _now "\ T" $j "\tcollapse\tthe new process:" $One _s_process "\ t \tthe old process: "$One _f_process >> /usr/tmp/$ip ' _collapse '. txtfidone# get the business process number First_ Process= "" for i in  $Process _namedoif [[  $i  ==  $gstr  ]]thenbf_process= ' ps |grep  $i |grep -v grep|grep -v  '/bin/bash ' |awk  ' {print $1} ' first_process= $First _process$ I ":" $Bf _process$spaceelsebf_process= ' ps |grep  $i |grep -v grep|awk  ' {print $1} ' first_process= $First _process$i ":" $Bf _process$spacefidone# system memory Utilization monitoring memory_use_rate= ' free | grep  mem | awk  ' {printf '%d ', $3/$2*100} ' if [ 80 -le  $Memory _use_rate ] thentime_now= ' Date ' echo -e  $Time _now "\tsystm memory\tmemory_use_rate\tat present the  use value: "$Memory _use_rate"%\tthreshold:80% " >> /usr/tmp/$ip ' _alarm '. txtfi# System CPU Residual rate monitoring cpu_residual_rate= ' mpstat|grep all|awk  ' {printf '%d ', $11} ' echo  $Cpu _residual_rateif  [  $Cpu _residual_rate -le 20 ]thentime_now= ' Date ' echo  $Time _nowecho -e   $Time _now "\TSYSTM CPU\tcpu_residual_rate (%idle) \tat present the use value: "$Cpu _residual_rate"%\tThreshold:20% " >> /usr/tmp/$ip ' _alarm '. txtfi# Business Memory Utilization monitoring system_memory= ' free | grep mem |  awk  ' {printf '%d ', $2/1024} ' for k in  $Process _namedoif [[  $k  == $ Gstr ]]thenprocess_memory_use= ' ps |grep  $k |grep -v grep|grep -v  '/bin/bash ' |awk  ' {print $3} ' var_length=${#Process_Memory_Use}var_position= ' expr  $var _length - 1 ' M=${process_memory_use: $var _position:1}if [[  $m  ==  "M"  ]]thenpro_mem_use=${process_ memory_use:0: $var _position}elsepro_mem_use= ' expr  $Process _memory_use / 1024 ' FiSystem_Memory_ Threshold= ' free | grep mem | awk  ' {printf '%d ', $2/1024*0.8} ' if [[  $Pro _mem_use  -ge  $System _memory_threshold ]]thentime_now= ' Date ' echo -e  $Time _now "\ t "$k" \tprocess_mEmory_use\tat present the use value: "$Pro _mem_use" Mb\tthreshold: "$System _memory_threshold" Mb " >> /usr/tmp/$ip ' _alarm '. txtfielseprocess_memory_use= ' ps |grep  $k |grep -v  grep|awk  ' {print $3} ' var_length=${#Process_Memory_Use}var_position= ' expr  $var _length  - 1 ' m=${process_memory_use: $var _position:1}if [[  $m  ==  "M"  ]]thenpro_mem_ use=${process_memory_use:0: $var _position}elsepro_mem_use= ' expr  $Process _memory_use / 1024 ' Fisystem_memory_threshold= ' free | grep mem | awk  ' {printf '%d ', $2/1024*0.8} ' if  [[  $Pro _mem_use  -ge  $System _memory_threshold ]]thentime_now= ' Date ' echo -e   $Time _now "\ T" $k "\tprocess_memory_use\tat present the use value:" $Pro _mem_use "Mb\ Tthreshold: "$System _memory_threshold" Mb " >> /usr/tmp/$ip ' _alarm '. Txtfifidonedone

Shell script monitors embedded Linux system business, CPU, memory, etc.