一个Linux主机巡检脚本
功能：
对Linux主机的物理资源消耗进行监测和统计，对运行在本机上的服务进程进行监测和统计，列出本机上的账户有效期
使用场景：
在没有 Promethes、zabbix、夜莺等监控工具的条件下，通过 crontab 排程应用本程序完成对主机上的关键信息的采集和输出，一遍分析当前主机的物理资源与业务程序的运行状态。
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#!/bin/bash
echo "################################################### README INFO ##############################################################"
echo "### Purpose: Carrying Out A Routine Inspection & Monitoring the Program Running-Status and the Consumed Hardware Resource ###"
echo "### Made By: PomanTeng ###"
echo "### E-mail: [email protected] ###"
echo "### WeChat: 1807479153 ###"
echo "### Version Identification Number:V2.1.0 ###"
echo "### Procedure Identification Number:20230916 ###"
echo "##############################################################################################################################"
# Check the current OS user
[[ $(id -u) -gt 0 ]] && echo "请用root用户执行此脚本！" && exit 1
source /etc/profile
source ~/.bash_profile
echo " "
echo -e "现在时刻 :\n \n $(date)"
echo " "
echo " "
echo "当前OS及其依托的基础设备类型 :"
echo " "
cat /etc/*release* | awk '/release/' | uniq
echo " "
hostnamectl | awk '/Chassis|Virtualization/'
echo " "
# Defining the Manufacturer-Variables
manufacturer=$(dmidecode -s system-manufacturer)
productName=$(dmidecode -s system-product-name)
productSN=$(dmidecode -s system-serial-number)
biosVendor=$(dmidecode -s bios-vendor)
biosVersion=$(dmidecode -s bios-version)
cpuSpecification=$(dmidecode -s processor-version | uniq)
# Defining Variable "sysversion"
sysversion=$(cat /etc/*release* | grep "release" | uniq)
# Defining the Metric-Variables
cpuTop50=$(ps -aux | head -n 1 | awk -F " " -v OFS=' ' '{print $2,$3,$11}' ; ps -aux | sort -k3nr | head -n 50 | awk -F " " -v OFS=' ' '{print $2,$3,$11}')
memTop50=$(ps -aux | head -n 1 | awk -F " " -v OFS=' ' '{print $2,$4,$11}' ; ps -aux | sort -k4nr | head -n 50 | awk -F " " -v OFS=' ' '{print $2,$4,$11}')
cpuConsumedTotal=`ps -aux | head -n 1 | awk -F " " '{print $3}' ; ps -aux | awk '{sum+=$3}END{print sum}'`
rootUsed=$(df | awk '$NF=="/" {var=$3}END{print var/1024/1024" GB"}')
rootRemain=$(df | awk '$NF=="/" {var=$4}END{print var/1024/1024" GB"}')
rootPercent=$(df | awk '$NF=="/" {print $5}')
dataUsed=$(df | awk '$NF=="/app" {var=$3}END{print var/1024/1024" GB"}')
dataRemain=$(df | awk '$NF=="/app" {var=$4}END{print var/1024/1024" GB"}')
dataPercent=$(df | awk '$NF=="/app" {print $5}')
bondRX=$(ifconfig | grep -A 8 "bond1" | grep "RX packets")
bondTX=$(ifconfig | grep -A 8 "bond1" | grep "TX packets")
sysLoad=$(top | head -n 5)
vmstatLoad=$(vmstat -wt)
memUsed=$(free -h | awk -F " " '{print $3}' | awk -F " " 'NR==2')
memRemain=$(free -h | awk -F " " '{print $7}' | awk -F " " 'NR==2')
swapUsed=$(free -h | awk -F " " '{print $3}' | awk -F " " 'NR==3')
swapRemain=$(free -h | awk -F " " '{print $4}' | awk -F " " 'NR==3')
localIP=$(ip addr | awk '/^[0-9]+: / {}; /inet.*global/ {print gensub(/(.*)\/(.*)/, "\\1", "g", $2)}' | awk 'NR==1')
listeningPortProgram=$(netstat -tlunp | awk -F " " 'NR == 1 {next} {print $0}')
portList=$(netstat -tlunp -e | awk -F " " 'NR==1 {next} {print $0}' | awk -F " " '{print $4}' | awk -F ":" '{print $NF}')
netstat -tlunp -e | awk -F " " 'NR==1 {next} {print $0}' | awk -F " " '{print $4}' | awk -F ":" '{print $NF}' | awk -F " " 'NR==1 {next} {print $0}' > ./portList.txt
# Defining the Function "get_Port-Program" to get the port and the corresponding program
get_Port_Program(){
cat ./portList.txt | while read lines
do
for var in "$lines"
do
echo "&&&&& Separator BEGIN &&&&&"
echo -e "Current Port is : " $var
echo -e "PID and Program is : " pwdx $(lsof -i:$var | awk '/LISTEN?/' | awk -F " " '{print $2}' | uniq)
echo "&&&&& Separator END &&&&&"
done
done
}
####################################################################################################################################################################################################
# Defining the Function "excute_Main" to get the Routine Inspection-Result
excute_Main(){
cat << EOF
设备制造商:
${manufacturer}
设备供货型号:
${productName}
设备供货序列号:
${productSN}
BIOS制造商:
${biosVendor}
BIOS版本号:
${biosVersion}
板载CPU规格:
${cpuSpecification}
操作系统版本:
${sysversion}
当前主机的 Local IP:
${localIP}
CPU消耗总计:
${cpuConsumedTotal}
CPU消耗前50的程序:
${cpuTop50}
内存消耗前50的程序:
${memTop50}
内存消耗使用量:
${memUsed}
内存消耗剩余量:
${memRemain}
交换空间消耗使用量:
${swapUsed}
交换空间消耗剩余量:
${swapRemain}
根分区的使用量:
${rootUsed}
根分区的剩余量:
${rootRemain}
根分区的使用百分比:
${rootPercent}
数据分区的使用量:
${dataUsed}
数据分区的剩余量:
${dataRemain}
数据分区的使用百分比:
${dataPercent}
Bond接收的数据量:
${bondRX}
Bond发送的数据量:
${bondTX}
操作系统负载:
${sysLoad}
&&&&& Separator &&&&&
${vmstatLoad}
正在监听的服务:
${listeningPortProgram}
EOF
}
#########################################################################################################################################
# Execute Functions
excute_Main
rm -rf ./portList.txt
############################################################################################################################################
echo "***** 本机运行的业务程序 *****"
echo " "
echo -e "`ps -ef | grep "tiance" | grep -v "grep" | awk '{ for(i=1; i<=7; i++){ $i="" }; print NR $0 }'`"
echo " "
echo "***** 本机业务程序的端口状态 *****"
echo " "
echo -e "$(ss -tlunp | grep "tiance" | grep -v "grep" | awk -F " " '{print NR $5,$7}')"
echo " "
####################################################################################################################################################
echo "***** 系统用户失效日期 *****"
echo " "
cat /etc/passwd | awk -F ":" '{print $1}' | while read line; do echo "$line" && chage -l $line | grep "Password expires" --color=always ;done
echo " "
exit