shell脚本实验
LNMP自动化安装脚本
mkdir /data/sh
cd data/sh
vi lnmp.sh
#!/bin/bash read -p "这个脚本将在您的系统上安装Nginx、PHP 7.4和MySQL 8.0，并配置一个PHP演示网站。您是否要继续？(y/n): " CHOICE if [ "$CHOICE" != "y" ]; then echo "脚本已取消。" exit fi # Update the system yum update -y # Install EPEL repository for additional packages yum install epel-release -y # Install Nginx yum install nginx -y systemctl enable nginx systemctl start nginx # Install PHP 7.4 and required extensions yum install https://rpms.remirepo.net/enterprise/remi-release-7.rpm -y yum-config-manager --enable remi-php74 yum install php php-fpm php-common php-cli php-mysql php-gd php-xml php-mbstring -y systemctl enable php-fpm systemctl start php-fpm # Install MySQL 8.0 #如果下面的太慢执行经常超时的话，那换成离线的rpm rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022 yum install https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm -y yum install mysql-community-server -y systemctl enable mysqld systemctl start mysqld # Secure MySQL installation mysql_secure_installation # Configure Nginx for PHP demo site echo 'server { listen 80; server_name localhost; root /var/www/phpdemo; index index.php; location / { try_files $uri $uri/ =404; } location ~ \.php$ { fastcgi_pass unix:/run/php-fpm/php-fpm.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } }' > /etc/nginx/conf.d/phpdemo.conf # Include custom configuration files in nginx.conf echo 'include /etc/nginx/conf.d/*.conf;' >> /etc/nginx/nginx.conf # Create directory for the demo site mkdir -p /var/www/phpdemo echo '<?php phpinfo(); ?>' > /var/www/phpdemo/phpinfo.php # Restart Nginx systemctl restart nginx echo "安装和配置已完成！"chmod u+x lnmp.sh
./lnmp.sh
MySQL自动备份脚本
1、创建shell脚本文件夹
mkdir /data/sh
cd data/sh
vi mysql_backup.sh
#!/bin/bash BACKDIR=/data/backup/mysql/`date +%Y%m%d` MYSQLUSR=root MYSQLPWD=123Qwe!! mkdir -p $BACKDIR echo $1 if [[ $1 == "all" ]];then echo "当前走all逻辑" SQLFILE=all_`date +%H%M%S`.sql mysqldump -u$MYSQLUSR -p$MYSQLPWD --all-databases --single-transaction --flush-logs --master-data=2 > $BACKDIR/$SQLFILE else echo "当前走其他逻辑" SQLFILE=$1_`date +%H%M%S`.sql mysqldump -u$MYSQLUSR -p$MYSQLPWD -d $1 --single-transaction --flush-logs --master-data=2 > $BACKDIR/$SQLFILE fi echo "数据库备份成功"chmod u+x mysql_backuo.sh
./mysql_backup.sh hefangbbs
ls -la /data/backup/mysql/
ls -la /data/backup/mysql/日期/
系统磁盘使用率检测脚本
1、创建shell脚本文件夹
mkdir /data/sh
cd /data/sh
vi fdisk.sh
#!/bin/bash # 获取本机IP（直接获取当前设备ip） IP=$(hostname -I | awk '{print $1}') # 获取磁盘使用率（只取数字，过滤标题行） SPACE=$(df -Ph | grep -vE 'Filesystem|tmpfs' | awk '{print $5}' | tr -d '%') # 循环判断 for i in $SPACE; do if [ $i -ge 5 ]; then echo "$IP 的磁盘使用率已经超过了5%，请及时处理" fi donechmod u+x fdisk.sh
./fdisk.sh