Linux健康检查脚本

脚本示例

#! /bin/bash
#color notes
Normal='\033[0m'
GREEN='\033[0;32m'
RED='\033[0;31m'
YELLOW='\033[0;33m'
cyan='\033[0;36m'
yellow='\033[0;33m'
#Sectioning .........
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
echo "Server details:"
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"

#fetching basic specs from the server(user,ip,os)
user=`whoami`
echo -e "${cyan}User:${Normal} $user"
hostname=`hostname`
echo -e "${cyan}hostname:${Normal} $hostname"
ip=`hostname -I`
echo -e "${cyan}IP address:${Normal} $ip"
os=`cat /etc/os-release | grep 'NAME\|VERSION' | grep -v 'VERSION_ID' | grep -v 'PRETTY_NAME' | grep NAME`
echo -e "${cyan}OS:${Normal} $os"

#Sectioning.....
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
echo "Service status:"
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
sleep 1

#checking tomcat status
echo -e "${yellow}1) Tomcat${Normal}"
#grepping tomcat status from ps aux
pp=`ps aux | grep tomcat | grep "[D]java.util"`
if [[ $pp =~ "-Xms512M" ]];then
 echo -e "   Status: ${GREEN}UP${Normal}"
else
 echo -e "   Status: ${RED}DOWN${Normal}"
fi
echo ""
#function to check apache is running or not!
function apache() {
echo -e "${yellow}2) Apache-httpd${Normal}"
#grepping apache status from ps aux
httpd=`ps aux | grep httpd | grep apache`
if [[ $httpd =~ "apache" ]];then
 echo -e "   Status: ${GREEN}UP${Normal}"
else
 echo -e "   Status: ${RED}DOWN${Normal}"
fi
}

#function to check elastic is running or not
function elastic() {
echo -e "${yellow}3) Elasticsearch${Normal}"
#grepping elasticsearch status from ps aux
elastic=`ps aux | grep elasticsearch`
if [[ $elastic =~ "elastic+" ]];then
 echo -e "   Status: ${GREEN}UP${Normal}"
else
 echo -e "    Status: ${RED}DOWN${Normal}"
fi
#function to check mysql is running or not
}
function mysql() {
echo -e "${yellow}4) Mysql${Normal}"
#grepping mysql status from ps aux
mysql=`ps aux | grep mysqld`
if [[ $mysql =~ "mysqld" ]];then
 echo -e "   Status: ${GREEN}UP${Normal}"
else
 echo -e "   Status: ${RED}DOWN${Normal}"
fi
}

function docker() {
echo -e "${yellow}5) Docker${Normal}"
#grepping docker status from ps aux
docker=`systemctl status docker | grep dead`
if [[ $docker =~ "dead" ]];then
 echo -e "   Status: ${GREEN}UP${Normal}"
else
 echo -e "   Status: ${RED}DOWN${Normal}"
fi
}
#calling functions
apache
echo ""
elastic
echo ""
mysql
echo ""
docker
echo ""
#Sectioning............
#Fetching mem and cpu informations
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
echo "Memory Details:"
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
sleep 1
#view mem info
free -h
#get uptime details
uptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
echo -e "${cyan}System Uptime:${Normal} :$uptime"
#Fetching the load averageloadaverage=$(top -n 1 -b | grep "load average:" | awk '{print $10 $11 $12}')
echo -e "${cyan}Load average:${Normal}: $loadaverage"
echo -e "${cyan}The top 10 services with high resource usage are listed below.${Normal}"
#Get top services with high resource utilization
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head

#sectioning...........
#Fetching server space details!
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
echo "Server space Details:"
echo -e "${YELLOW}---------------------------------------------------------------------------------------------------------------${Normal}"
#View disk space details
df -h
echo "----------------------------------------------------------------------------------------------------------------"