常用的主机监控的 Shell 脚本
2013-09-04 11:35
381 查看
作为系统运维人员,就要实时的监控系统的一些重要参数,不如僵尸进程,CPU的利用率,内存的使用情况,磁盘空间的使用情况,系统的均衡负载,根据得到的最新信息,我们就能判断系统运行的状态是否良好。本人接触Linux系统也有一点时间,在网上看看了,经过整理,将一些常用的系统监控的命令shell脚本拿出来晒晒,希望给新手提供学习的机会,同时也希望经验丰富者提够些技术知道,多多探讨交流!
获得某个用户的某个进行的信息:
function GetPID #user #name
{
PsUser=$1
#echo $PsUser
PsName=$2
#echo $PsName
pid=`ps -u $PsUser | grep $PsName | grep -v grep | grep -v vi | grep -v dbx\n | grep -v tail | grep -v start | grep -v stop | sed -n 1p | awk '{print $1}'`
echo $pid
}
PID=`GetPID lgy cat`
echo $PID
#The process does not exist.
if [ "-$PID" == "-" ]
then
{
echo "The process does not exist."
}
fi
这里面涉及一些最基本的进程监控命令,在linux中你只要man ps就会得到很多使用说明,grep按照一定的匹配规则进行字符串分割匹配,还有一些简单的控制语句,这些基本的shell语法应该是我们的基本技能,在晚上会有很多的学习资料。
获得CPU的使用率:
function GetCPU
{
CPUValue=`ps -p $1 -o pcpu | grep -v CPU | awk '{print $1}' | awk -F. '{print $1}'`
echo $CPUValue
}
function CheckCPU
{
PID=$1
cpu=`GetCPU $PID`
if [ $cpu -gt 80 ]
then
{
echo "The usage of cpu is larger than 80%"
}
else
{
echo "The usage of cpu is normal"
}
fi
}
CheckCPU $PID
这个程序和上一个代码片段是一脉相承,本段代码的运行结果一会会有相应的展示!
这段脚本的主要目的是用来进行对某个进程的内存使用情况的检测:
function GetMem
{
MemUsage=`ps -o vsz -p $1 | grep -v VSZ`
((MemUsage /= 1024))
echo $MemUsage
}
mem=`GetMem $PID`
if [ $mem -gt 1600 ]
then
{
echo "The usage of memory is larger than 1.6G"
}
else
{
echo "The usage of memory is normal"
}
fi
这是用来进行获得此进程的句柄使用量:
function GetDes
{
DES=`ls /proc/$1/fd | wc -l`
echo $DES
}
des=`GetDes $PID`
if [ $des -gt 900 ]
then
{
echo "The number of des is larger than 900"
}
else
{
echo "The number of des is normal"
}
fi
进行对某个端口的绑定的查询:
function Listening
{
TCPListeningNum=`netstat -an | grep ":$1 " | awk '$1 == "tcp" && $NF == "LISTEN" {print $0}' | wc -l`
UDPListenNum=`netstat -an | grep ":$1 " | awk '$1 == "udp" && $NF == "0.0.0.0:*" {print $0}' | wc -l`
((ListeningNum = TCPListeningNum + UDPListenNum ))
if [ $ListeningNum == 0 ]
then
{
echo "0"
}
else
{
echo "1"
}
fi
}
isListen=`Listening 8080`
if [ $isListen -eq 1 ]
then
{
echo "The port is listening"
}
else
{
echo "The port is not listening"
}
fi
系统CPU的使用情况:
function GetSysCPU
{
CPUIdle=`vmstat 1 5 | sed -n '3,$p' | awk '{xx = x + $15} END {print x/5}' | awk -F. '{print $1}'`
CPUNum=`echo "100-$CPUIdle" | bc`
echo $CPUNum
}
cpu=`GetSysCPU`
echo "The System CPU is $cpu"
if [ $cpu -gt 90 ]
then
{
echo "The usage of system cpu is larger than 90%"
}
else
{
echo "The usage of system cpu is normal"
}
fi
获得某制定的磁盘空间:
function GetDiskSpc
{
if [ $# -ne 1 ]
then
return 1
fi
Folder="$1$"
DiskSpace=`df -k | grep $Folder | awk '{print $5}' | awk -F% '{print $1}'`
echo $DiskSpace
}
Folder="/dev"
DiskSpace=`GetDiskSpc $Folder`
echo "The system $Folder disk space is $DiskSpace%"
if [ $DiskSpace -gt 90 ]
then
{
echo "The usage of system disk($Folder) is larger than 90%"
}
else
{
echo "The usage of system disk($Folder) is normal"
}
fi
在本机上代码检测的结果如下:
lgy@lgy-HP:~$ ./monitorCPU.sh
2388
The usage of cpu is normal
The usage of memory is normal
The number of des is normal
The port is not listening
The System CPU is 1
The usage of system cpu is normal
The system /dev disk space is 1%
The usage of system disk(/dev) is normal
1、查看主机网卡流量#!/bin/bash
#!/bin/bash
#network
#Mike.Xu
while : ; do
time='date +%m"-"%d" "%k":"%M'
day='date +%m"-"%d'
rx_before='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'
tx_before='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'
sleep 2
rx_after='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'
tx_after='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'
rx_result=$[(rx_after-rx_before)/256]
tx_result=$[(tx_after-tx_before)/256]
echo "$time Now_In_Speed: "$rx_result"kbps Now_OUt_Speed: "$tx_result"kbps"
sleep 2
done
done
2、系统状况监控#!/bin/sh
#systemstat.sh
#Mike.Xu
IP=192.168.1.227
top -n 2| grep "Cpu" >>./temp/cpu.txt
free -m | grep "Mem" >> ./temp/mem.txt
df -k | grep "sda1" >> ./temp/drive_sda1.txt
#df -k | grep sda2 >> ./temp/drive_sda2.txt
df -k | grep "/mnt/storage_0" >> ./temp/mnt_storage_0.txt
df -k | grep "/mnt/storage_pic" >> ./temp/mnt_storage_pic.txt
time=`date +%m"."%d" "%k":"%M`
connect=`netstat -na | grep "219.238.148.30:80" | wc -l`
echo "$time $connect" >> ./temp/connect_count.txt
3、监控主机的磁盘空间,当使用空间超过90%就通过发mail来发警告#!/bin/bash
#monitor available disk space
SPACE='df | sed -n '/ \ / $ / p' | gawk '{print $5}' | sed 's/%//'
if [ $SPACE -ge 90 ]
then
fty89@163.com
fi
4、 监控CPU和内存的使用情况#!/bin/bash
#script to capture system statistics
OUTFILE=/home/xu/capstats.csv
DATE='date +%m/%d/%Y'
TIME='date +%k:%m:%s'
TIMEOUT='uptime'
VMOUT='vmstat 1 2'
USERS='echo $TIMEOUT | gawk '{print $4}' '
LOAD='echo $TIMEOUT | gawk '{print $9}' | sed "s/,//' '
FREE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' | gawk '{print $4} ' '
IDLE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' |gawk '{print $15}' '
echo "$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE" >> $OUTFILE
5、全方位监控主机#!/bin/bash
# check_xu.sh
# 0 * * * * /home/check_xu.sh
DAT="`date +%Y%m%d`"
HOUR="`date +%H`"
DIR="/home/oslog/host_${DAT}/${HOUR}"
DELAY=60
COUNT=60
# whether the responsible directory exist
if ! test -d ${DIR}
then
/bin/mkdir -p ${DIR}
fi
# general check
export TERM=linux
/usr/bin/top -b -d ${DELAY} -n ${COUNT} > ${DIR}/top_${DAT}.log 2>&1 &
# cpu check
/usr/bin/sar -u ${DELAY} ${COUNT} > ${DIR}/cpu_${DAT}.log 2>&1 &
#/usr/bin/mpstat -P 0 ${DELAY} ${COUNT} > ${DIR}/cpu_0_${DAT}.log 2>&1 &
#/usr/bin/mpstat -P 1 ${DELAY} ${COUNT} > ${DIR}/cpu_1_${DAT}.log 2>&1 &
# memory check
/usr/bin/vmstat ${DELAY} ${COUNT} > ${DIR}/vmstat_${DAT}.log 2>&1 &
# I/O check
/usr/bin/iostat ${DELAY} ${COUNT} > ${DIR}/iostat_${DAT}.log 2>&1 &
# network check
/usr/bin/sar -n DEV ${DELAY} ${COUNT} > ${DIR}/net_${DAT}.log 2>&1 &
#/usr/bin/sar -n EDEV ${DELAY} ${COUNT} > ${DIR}/net_edev_${DAT}.log 2>&1 &
放在crontab里每小时自动执行:0 * * * * /home/check_xu.sh
这样会在/home/oslog/host_yyyymmdd/hh目录下生成各小时cpu、内存、网络,IO的统计数据。
如果某个时间段产生问题了,就可以去看对应的日志信息,看看当时的主机性能如何。
原文链接:http://www.dbasky.net/archives/2009/10/shell.html
获得某个用户的某个进行的信息:
function GetPID #user #name
{
PsUser=$1
#echo $PsUser
PsName=$2
#echo $PsName
pid=`ps -u $PsUser | grep $PsName | grep -v grep | grep -v vi | grep -v dbx\n | grep -v tail | grep -v start | grep -v stop | sed -n 1p | awk '{print $1}'`
echo $pid
}
PID=`GetPID lgy cat`
echo $PID
#The process does not exist.
if [ "-$PID" == "-" ]
then
{
echo "The process does not exist."
}
fi
这里面涉及一些最基本的进程监控命令,在linux中你只要man ps就会得到很多使用说明,grep按照一定的匹配规则进行字符串分割匹配,还有一些简单的控制语句,这些基本的shell语法应该是我们的基本技能,在晚上会有很多的学习资料。
获得CPU的使用率:
function GetCPU
{
CPUValue=`ps -p $1 -o pcpu | grep -v CPU | awk '{print $1}' | awk -F. '{print $1}'`
echo $CPUValue
}
function CheckCPU
{
PID=$1
cpu=`GetCPU $PID`
if [ $cpu -gt 80 ]
then
{
echo "The usage of cpu is larger than 80%"
}
else
{
echo "The usage of cpu is normal"
}
fi
}
CheckCPU $PID
这个程序和上一个代码片段是一脉相承,本段代码的运行结果一会会有相应的展示!
这段脚本的主要目的是用来进行对某个进程的内存使用情况的检测:
function GetMem
{
MemUsage=`ps -o vsz -p $1 | grep -v VSZ`
((MemUsage /= 1024))
echo $MemUsage
}
mem=`GetMem $PID`
if [ $mem -gt 1600 ]
then
{
echo "The usage of memory is larger than 1.6G"
}
else
{
echo "The usage of memory is normal"
}
fi
这是用来进行获得此进程的句柄使用量:
function GetDes
{
DES=`ls /proc/$1/fd | wc -l`
echo $DES
}
des=`GetDes $PID`
if [ $des -gt 900 ]
then
{
echo "The number of des is larger than 900"
}
else
{
echo "The number of des is normal"
}
fi
进行对某个端口的绑定的查询:
function Listening
{
TCPListeningNum=`netstat -an | grep ":$1 " | awk '$1 == "tcp" && $NF == "LISTEN" {print $0}' | wc -l`
UDPListenNum=`netstat -an | grep ":$1 " | awk '$1 == "udp" && $NF == "0.0.0.0:*" {print $0}' | wc -l`
((ListeningNum = TCPListeningNum + UDPListenNum ))
if [ $ListeningNum == 0 ]
then
{
echo "0"
}
else
{
echo "1"
}
fi
}
isListen=`Listening 8080`
if [ $isListen -eq 1 ]
then
{
echo "The port is listening"
}
else
{
echo "The port is not listening"
}
fi
系统CPU的使用情况:
function GetSysCPU
{
CPUIdle=`vmstat 1 5 | sed -n '3,$p' | awk '{xx = x + $15} END {print x/5}' | awk -F. '{print $1}'`
CPUNum=`echo "100-$CPUIdle" | bc`
echo $CPUNum
}
cpu=`GetSysCPU`
echo "The System CPU is $cpu"
if [ $cpu -gt 90 ]
then
{
echo "The usage of system cpu is larger than 90%"
}
else
{
echo "The usage of system cpu is normal"
}
fi
获得某制定的磁盘空间:
function GetDiskSpc
{
if [ $# -ne 1 ]
then
return 1
fi
Folder="$1$"
DiskSpace=`df -k | grep $Folder | awk '{print $5}' | awk -F% '{print $1}'`
echo $DiskSpace
}
Folder="/dev"
DiskSpace=`GetDiskSpc $Folder`
echo "The system $Folder disk space is $DiskSpace%"
if [ $DiskSpace -gt 90 ]
then
{
echo "The usage of system disk($Folder) is larger than 90%"
}
else
{
echo "The usage of system disk($Folder) is normal"
}
fi
在本机上代码检测的结果如下:
lgy@lgy-HP:~$ ./monitorCPU.sh
2388
The usage of cpu is normal
The usage of memory is normal
The number of des is normal
The port is not listening
The System CPU is 1
The usage of system cpu is normal
The system /dev disk space is 1%
The usage of system disk(/dev) is normal
1、查看主机网卡流量#!/bin/bash
#!/bin/bash
#network
#Mike.Xu
while : ; do
time='date +%m"-"%d" "%k":"%M'
day='date +%m"-"%d'
rx_before='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'
tx_before='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'
sleep 2
rx_after='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'
tx_after='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'
rx_result=$[(rx_after-rx_before)/256]
tx_result=$[(tx_after-tx_before)/256]
echo "$time Now_In_Speed: "$rx_result"kbps Now_OUt_Speed: "$tx_result"kbps"
sleep 2
done
done
2、系统状况监控#!/bin/sh
#systemstat.sh
#Mike.Xu
IP=192.168.1.227
top -n 2| grep "Cpu" >>./temp/cpu.txt
free -m | grep "Mem" >> ./temp/mem.txt
df -k | grep "sda1" >> ./temp/drive_sda1.txt
#df -k | grep sda2 >> ./temp/drive_sda2.txt
df -k | grep "/mnt/storage_0" >> ./temp/mnt_storage_0.txt
df -k | grep "/mnt/storage_pic" >> ./temp/mnt_storage_pic.txt
time=`date +%m"."%d" "%k":"%M`
connect=`netstat -na | grep "219.238.148.30:80" | wc -l`
echo "$time $connect" >> ./temp/connect_count.txt
3、监控主机的磁盘空间,当使用空间超过90%就通过发mail来发警告#!/bin/bash
#monitor available disk space
SPACE='df | sed -n '/ \ / $ / p' | gawk '{print $5}' | sed 's/%//'
if [ $SPACE -ge 90 ]
then
fty89@163.com
fi
4、 监控CPU和内存的使用情况#!/bin/bash
#script to capture system statistics
OUTFILE=/home/xu/capstats.csv
DATE='date +%m/%d/%Y'
TIME='date +%k:%m:%s'
TIMEOUT='uptime'
VMOUT='vmstat 1 2'
USERS='echo $TIMEOUT | gawk '{print $4}' '
LOAD='echo $TIMEOUT | gawk '{print $9}' | sed "s/,//' '
FREE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' | gawk '{print $4} ' '
IDLE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' |gawk '{print $15}' '
echo "$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE" >> $OUTFILE
5、全方位监控主机#!/bin/bash
# check_xu.sh
# 0 * * * * /home/check_xu.sh
DAT="`date +%Y%m%d`"
HOUR="`date +%H`"
DIR="/home/oslog/host_${DAT}/${HOUR}"
DELAY=60
COUNT=60
# whether the responsible directory exist
if ! test -d ${DIR}
then
/bin/mkdir -p ${DIR}
fi
# general check
export TERM=linux
/usr/bin/top -b -d ${DELAY} -n ${COUNT} > ${DIR}/top_${DAT}.log 2>&1 &
# cpu check
/usr/bin/sar -u ${DELAY} ${COUNT} > ${DIR}/cpu_${DAT}.log 2>&1 &
#/usr/bin/mpstat -P 0 ${DELAY} ${COUNT} > ${DIR}/cpu_0_${DAT}.log 2>&1 &
#/usr/bin/mpstat -P 1 ${DELAY} ${COUNT} > ${DIR}/cpu_1_${DAT}.log 2>&1 &
# memory check
/usr/bin/vmstat ${DELAY} ${COUNT} > ${DIR}/vmstat_${DAT}.log 2>&1 &
# I/O check
/usr/bin/iostat ${DELAY} ${COUNT} > ${DIR}/iostat_${DAT}.log 2>&1 &
# network check
/usr/bin/sar -n DEV ${DELAY} ${COUNT} > ${DIR}/net_${DAT}.log 2>&1 &
#/usr/bin/sar -n EDEV ${DELAY} ${COUNT} > ${DIR}/net_edev_${DAT}.log 2>&1 &
放在crontab里每小时自动执行:0 * * * * /home/check_xu.sh
这样会在/home/oslog/host_yyyymmdd/hh目录下生成各小时cpu、内存、网络,IO的统计数据。
如果某个时间段产生问题了,就可以去看对应的日志信息,看看当时的主机性能如何。
原文链接:http://www.dbasky.net/archives/2009/10/shell.html
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