系统级

开机升级软包脚本

system_init.sh

#!/bin/bash

# 更新系统包索引并安装常用服务包bc和net-tools
apt-get update && clear

# 更新系统包索引并安装bc和net-tools
apt-get install -y git curl nano tree net-tools screen

# 升级cloudflared到最新版本并重启服务
apt-get upgrade cloudflared -y && systemctl restart cloudflared.service

自动检查脚本

下面脚本放到opt文件夹方便管理

cd /opt/scripts/
nano system_info.sh
chmod +x system_info.sh
crontab -e
@reboot /opt/scripts/system_info.sh

system_info.sh

#!/bin/bash

# 更新系统包索引并安装bc和net-tools
apt-get update && apt-get install -y bc net-tools

clear

LogFileName=polling.$(date +%F-%T)

EchoFormat=$(for (( i=0;i<30;i++ ));do echo -n "=";done)

# 系统信息

SystemInfo(){

printf "${EchoFormat} 系统信息 ${EchoFormat}\n"

printf "系统类型: %-10s\n" $(uname -a| awk '{print $NF}')

printf "系统版本: %-10s\n" "$(source /etc/os-release && echo $PRETTY_NAME)"

printf "内核信息: %-10s\n" $(uname -r)

printf "主机名: %-10s\n" $(uname -n)

printf "编码格式: %-10s\n" ${LANG}

printf "系统当前时间: %-10s %-10s\n" $(date +%F) $(date +%T)

printf "系统运行负载: %-4s %-1s\n" $(uptime | awk -F: '{print $5 }'|awk -F, '{print $1,"%"}')

printf "系统运行天数: %-10s\n" $(uptime |awk '{print $3}')

printf "在线用户人数: %-3s\n" $(w|tail -n +3|wc -l)

# printf "SELinux: %-10s\n" $(grep "SELINUX=[d|e|p]" /etc/selinux/config |awk -F= '{print $2}')
# echo "SELinux: 不适用 (非RedHat系列)"

echo -e "最后一次修改时间: $(uptime -p)"

echo -e "IP地址: $(hostname -I | cut -d' ' -f1)"

echo -e "Cpu处理器: $(lscpu | grep "Model name:" | sed 's/Model name:\s*//')"

echo -e "内存空间: $(free -h | awk '/^Mem:/ { print $3 "/" $2 }')"

echo -e "交换空间: $(free -h | awk '/^Swap:/ { print $3 "/" $2 }')"

}

# CPU信息

CpuInfo(){

MemonyId=$(top -b -n1|awk 'NR==3'|awk -F, '{print $4}'| cut -c 1-5)

MemonyUse=$(echo "100-${MemonyId}" |bc)

printf "${EchoFormat} CPU信息 ${EchoFormat}\n"

printf "逻辑CPU核数: %-3s\n" $(grep "processor" /proc/cpuinfo|sort -u|wc -l)

printf "物理CPU核数: %-3s\n" $(grep "physical id" /proc/cpuinfo |sort -u|wc -l)

printf "CPU架构: %-3s\n" $(uname -m)

printf "CPU设置型号: %-3s\n" "$(grep "model name" /proc/cpuinfo |awk -F: '{print $2}'|sort -u|cut -c 2-50)"

echo -e "CPU 1分钟负载: `awk  '{printf "%15s",$1}' /proc/loadavg`"

echo -e "CPU 5分钟负载: `awk  '{printf "%15s",$2}' /proc/loadavg`"

echo -e "CPU10分钟负载: `awk  '{printf "%15s",$3}' /proc/loadavg`"

printf "使用CPU占比: %-1s %-1s\n" ${MemonyUse} %

printf "空闲CPU占比: %-1s %-1s\n" ${MemonyId} %

printf "占用CPU Top10信息:\n\n"

ps -eo user,pid,pcpu,pmem,args --sort=-pcpu  |head -n 10

}

# Memory信息

MemoryInfo(){

printf "${EchoFormat} 内存信息 ${EchoFormat}\n"

printf "总共内存: %-1s\n" $(free -mh|awk "NR==2"|awk '{print $2}')

printf "使用内存: %-1s\n" $(free -mh|awk "NR==2"|awk '{print $3}')

printf "剩余内存: %-1s\n" $(free -mh|awk "NR==2"|awk '{print $4}')

printf "内存使用占比: %-1s %-1s\n" $(free | grep -i mem |awk '{print $6/$2*100}'|cut -c1-5) %

printf "占用内存排名前10的soft:\n\n"

ps -eo user,pid,pcpu,pmem,args --sort=-pmem  |head -n 10

}

# 磁盘使用量排序：

Disk_Info() {

printf "${EchoFormat} 各分区使用率 ${EchoFormat}\n"

df -h

echo

}

# Swap信息

SwapInfo(){

printf "${EchoFormat} Swap信息 ${EchoFormat}\n"

printf "Swap总大小: %-1s\n" $(free -mh|awk "NR==3"|awk '{print $2}')

printf "已用Swap: %-1s\n" $(free -mh|awk "NR==3"|awk '{print $3}')

printf "可用Swap: %-1s\n" $(free -mh|awk "NR==3"|awk '{print $4}')

}

# 网络信息

NetworkInfo(){

printf "${EchoFormat} 网络信息 ${EchoFormat}\n"

printf "IP地址: %-1s %-1s %-1s %-1s\n" $(ip addr show | grep inet | grep -v 127.0.0.1 | awk '{print $2}' | cut -d'/' -f1)

printf "网关: %-1s\n" $(ip route show default | awk '{print $3}')

printf "DNS: %-1s %-1s %-1s %-1s %-1s\n" $(grep "nameserver" /etc/resolv.conf | awk '{print $2}')

if (ping -c2 -w2 www.baidu.com &>/dev/null);then

printf "网络是否连通: %s\n" 是
printf "公网IP地址: %s\n" $(curl -s ip.sb)  

else

printf "网络是否连通: %s\n" 否

fi

}

# docker检查

DockerInfo(){

printf "${EchoFormat} docker运行情况 ${EchoFormat}\n"

printf "当前正在运行的容器：\n $(docker ps --format "{{.Names}}")\n"

printf "当前没有运行的容器：\n $(docker ps --format "{{.Names}}"|grep Exited)\n"

}

#直接登录后打印

SystemInfo 

CpuInfo

MemoryInfo

Disk_Info

SwapInfo

NetworkInfo

#登录后进入查看模式

# All(){

# SystemInfo 

# CpuInfo

# MemoryInfo

# Disk_Info

# SwapInfo

# NetworkInfo

# }

# All >${LogFileName};less ${LogFileName}