From 0d8fedc7b2360db1ae98ce275bdf6f87dea69904 Mon Sep 17 00:00:00 2001 From: diandian Date: Sat, 15 Apr 2023 23:00:25 +0800 Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?= =?UTF-8?q?=20'Shell-MD'?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Shell-MD/shell脚本案例.md | 299 ++++++++++++++++++++++++++++++++++ 1 file changed, 299 insertions(+) create mode 100644 Shell-MD/shell脚本案例.md diff --git a/Shell-MD/shell脚本案例.md b/Shell-MD/shell脚本案例.md new file mode 100644 index 0000000..62c9397 --- /dev/null +++ b/Shell-MD/shell脚本案例.md @@ -0,0 +1,299 @@ +

shell脚本案例

+ +作者：行癫（盗版必究） + +------ + +## 一：脚本案例 + +#### 1.配置静态IP案例 + +```shell +#!/bin/bash +# This script configures a static IP address on CentOS 7 + +# Define variables for the IP address, netmask, gateway, and DNS servers +IP_ADDRESS=192.168.1.100 +NETMASK=255.255.255.0 +GATEWAY=192.168.1.1 +DNS_SERVERS="8.8.8.8 114.114.114.114" + +# Backup the original network configuration file +cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak + +# Modify the network configuration file with the static IP address, netmask, gateway, and DNS servers +cat << EOF > /etc/sysconfig/network-scripts/ifcfg-ens33 +TYPE=Ethernet +BOOTPROTO=none +NAME=ens33 +DEVICE=ens33 +ONBOOT=yes +IPADDR=$IP_ADDRESS +NETMASK=$NETMASK +GATEWAY=$GATEWAY +DNS1=${DNS_SERVERS%% *} +DNS2=${DNS_SERVERS##* } +EOF + +# Restart the network service to apply the changes +systemctl restart network + +# Display the new network configuration +ip addr show ens33 +``` + +centos stream 9 + +```shell +[root@xingdiancloud ~]# bash network.sh +#!/bin/bash +#auther：xingdian +NET_DIR=`ls /etc/NetworkManager/system-connections/` +NET_PATH="/etc/NetworkManager/system-connections/" +read -p "请输入IP地址: " ipadd +read -p "请输入子网掩码,例如24: " netmask +read -p "请输入默认网关: " gateway +read -p "请输入dns地址: " dns +read -p "输入设备名字: " name +# 备份原配置 +if [ -f ${NET_PATH}${name}.nmconnection.bak ];then + rm -rf ${NET_PATH}${name}.nmconnection.bak +else + cp ${NET_PATH}${NET_DIR} ${NET_PATH}${NET_DIR}.bak +fi +cat > ${NET_PATH}${name}.nmconnection < /dev/null + + if [ $? -eq 0 ];then + echo "防火墙已经成功关闭....." + else + echo "防火墙关闭失败，请手动关闭！！！" + fi + + setenforce 0 && sed -i '/^SELINUX/c SELINUX=disabled' /etc/selinux/config + + if [ $? -eq 0 ];then + echo "selinux已经成功关闭....." + else + echo "selnux关闭失败，请手动关闭！！！" + fi +echo + +# 外网检测 +echo "正在检测网络是否能上外网......" + +echo + + ping -c 2 www.baidu.com &> /dev/null + + if [ $? -eq 0 ];then + echo "网络正常" + else + echo "网络不可达！" + fi +echo + +# 配置yum源-这里选用阿里源 + +echo "配置yum源中....." +echo + yum install -y wget &> /dev/null + if [ $? -ne 0 ];then + echo "wget 安装失败........." + systemctl restart network + yum repolist &> /dev/null + sleep 2 + fi + mkdir -p /root/YUM_backup + mv /etc/yum.repos.d/* /root/YUM_backup + wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo &>/dev/null + wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo &>/dev/null + yum clean all &>/dev/null && yum reppolist &>/dev/null + echo "你的yum源有:" $(ls /etc/yum.repos.d) + sleep 2 + +# 配置主机名和host文件 + +echo "正在配置你的主机名..." + +echo + read -p "请输入你的主机名:" host + + hostname(){ + hostnamectl set-hostname $host + } + hostname host && echo -e "主机名设置成功!!" + +echo "正在配置你的hosts文件..." + ip=$(ip a | grep ens33 |grep inet |awk '{print $2}' | awk -F"/" '{print $1}') + echo "$ip $host" >> /etc/hosts + echo "hosts配置完成!!!" + +# 安装基础软件包 + + echo "安装基础软件包中....." + echo + + yum install -y vim wget unzip yum_utils &>/dev/null + if [ $? -eq 0 ];then + echo "安装完成....." + else + echo "安装失败..... " + fi +# 时间同步 +echo + echo "时间同步中……" + yum install -y ntpdate &> /dev/null + ntpdate cn.pool.ntp.org &> /dev/null + file=$(who | head -1 | cut -d" " -f1) + echo "* */1 * * * /usr/sbin/ntpdate cn.pool.ntp.org" > /var/spool/cron/$file + if [ $? -eq 0 ];then + echo "时间同步成功！！！" + echo "unset MAILCHECK" >> /etc/profile + source /etc/profile &> /dev/null + else + echo "时间同步失败！！！" + fi +``` + +#### 3.获取系统信息 + +```shell +#!/bin/bash +#此脚本获取系统centos7.x/centos stream9.x +#auther：xingdian + +#查看服务器硬件型号 +hard_type=`dmidecode |grep "Product Name"|tr "\n" " "` #获取服务器型号 +sn=`dmidecode |grep -A 3 "Product Name" |grep "Serial Number"|grep -v "None"` #获取硬件序列码 + +##系统信息 +version=`cat /etc/redhat-release` #版本 +kernel=`uname -r` #内核 + +##cpu +phy_cpu_num=`grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l` #物理CPU数量 +nuclear=`grep vendor_id /proc/cpuinfo|wc -l` #逻辑核数(线程) + +##内存\Swap +mem=`free -m|grep Mem|awk '{print $2"M"}'` #内存总大小 +user_mem=`free -m|grep Mem|awk '{print $3"M"}'` #已用内存大小 +swap=`free -m |grep Swap|awk '{print $2"M"}'` #swap总大小 +user_swap=`free -m |grep Swap|awk '{print $3"M"}'` #已用swap大小 + +#最大支持内存数 +max_memory=`dmidecode|grep -P 'Maximum\s+Capacity'` + +##负载 +loadavg=`uptime |awk -F: '{print $NF}'` #系统负载 + +##网络 +network=`[[ $(curl -o /dev/null --connect-timeout 3 -s -w "%{http_code}" www.baidu.com) -eq 200 ]] && echo yes || echo no` #根据curl www.baidu.com的返回状态码来判断是否能上网 +ip_addr=`ip address|grep -w "inet"|grep -v "127.0.0.1"|awk -F "[ /]+" '{print $3,$NF}'` #获取除了回环地址之外的所有网卡的ip地址和对应的网卡名 +##磁盘 +disk_zong=`df -Th | grep -w '/' | awk '{print $3}'` #获取系统盘的总大小 +disk_user=`df -Th | grep -w '/' | awk '{print $4}'` #获取系统盘已用大小 +disk_lsbl=`lsblk` #硬盘分区分布 +##其他 +system_time=`awk '{a=$1/86400;b=($1%86400)/3600;c=($1%3600)/60;d=$1%60} {printf("%ddays, %d:%d:%d\n",a,b,c,d)}' /proc/uptime` #开机时长 +sys_begin=`date -d "$(awk -F. '{print $1}' /proc/uptime) second ago" +"%Y-%m-%d %H:%M:%S"` #开机时间 +##日志 +system_log=`du -sh /var/log/ |awk '{print $1}'` #系统日志大小 +#进程 +tasks=`top -n1 |grep Tasks |awk '{print $2,$4,6}'` #总 运行 休眠 + +system(){ +echo " +|硬件型号： +$hard_type +|序列号： +$sn +|版本： $version +|内核： $kernel + +|物理CPU个数：$phy_cpu_num 逻辑核数： $nuclear"个" +|负载：$loadavg + +|内存： $mem #最大支持内存：$max_memory +|已用： $user_mem +|swap: $swap +|已用: $user_swap + +|是否可以上网： $network +|本地IP地址: +$ip_addr + +|系统磁盘大小: $disk_zong +|系统磁盘已用: $disk_user +|日志： 系统日志大小为$system_log +|开机： $sys_begin +|至今： $system_time +硬盘分区 +---------------------------------------------------------------------- +$disk_lsbl +---------------------------------------------------------------------- + +---------------------------------------------------------------------- +" +} +system +##端口扫描 +echo "监听的端口扫描 +----------------------------------------------------------------------" +portarray=(`sudo netstat -tnlp|egrep -i "$1"|awk {'print $4'}|awk -F':' '{if ($NF~/^[0-9]*$/) print $NF}'|sort|uniq`) +length=${#portarray[@]} #统计元素个数 +printf "{\n" +printf '\t'port":" +for ((i=0;i<$length;i++)) +do +printf '\n\t\t{' +printf "\"{#TCP_PORT}\":\"${portarray[$i]}\"}" +if [ $i -lt $[$length-1] ];then +printf ',' +fi +done +printf "\n\t\n" +printf "}\n" +echo "---------------------------------------------------------------------- +" +```