LinuxShell

监控 MySQL 主从同步状态是否异常脚本

  1. #!/bin/bash
  2. HOST=localhost
  3. USER=root
  4. PASSWD=123.com
  5. IO_SQL_STATUS=$(mysql -h$HOST -u$USER -p$PASSWD -e 'show slave status\G' 2>/dev/null |awk '/Slave_.*_Running:/{print $1$2}')
  6. for i in $IO_SQL_STATUS; do
  7.     THREAD_STATUS_NAME=${i%:*}
  8.     THREAD_STATUS=${i#*:}
  9.     if [ "$THREAD_STATUS" != "Yes" ]; then
  10.         echo "Error: MySQL Master-Slave $THREAD_STATUS_NAME status is $THREAD_STATUS!" |mail -s "Master-Slave Staus" [url=mailto:xxx@163.com]xxx@163.com[/url]
  11.     fi
  12. done

目录文件变化监控和实时文件同步

  1. #!/bin/bash
  3. MON_DIR=/opt
  4. inotifywait -mqr --format %f -e create $MON_DIR |\
  5. while read files; do
  6.    rsync -avz /opt /tmp/opt
  7.    #echo "$(date +'%F %T') create $files" | mail -s "dir monitor" [url=mailto:xxx@163.com]xxx@163.com[/url]
  8. done

批量创建 100 用户并设置密码脚本

  1. #!/bin/bash
  2. DATE=$@
  3. USER_FILE=user.txt
  4. for USER in $USER_LIST; do
  5.     if ! id $USER &>/dev/null; then
  6.         PASS=$(echo $RANDOM |md5sum |cut -c 1-8)
  7.         useradd $USER
  8.         echo $PASS |passwd --stdin $USER &>/dev/null
  9.         echo "$USER   $PASS" >> $USER_FILE
  10.         echo "$USER User create successful."
  11.     else
  12.         echo "$USER User already exists!"
  13.     fi
  14. done

批量检测网站是否异常脚本

  1. #!/bin/bash
  2. URL_LIST="www.baidu.com [url=http://www.ctnrs.com]www.ctnrs.com[/url]"
  3. for URL in $URL_LIST; do
  4.     FAIL_COUNT=0
  5.     for ((i=1;i<=3;i++)); do
  6.         HTTP_CODE=$(curl -o /dev/null --connect-timeout 3 -s -w "%{http_code}" $URL)
  7.         if [ $HTTP_CODE -eq 200 ]; then
  8.             echo "$URL OK"
  9.             break
  10.         else
  11.             echo "$URL retry $FAIL_COUNT"
  12.             let FAIL_COUNT++
  13.         fi
  14.     done
  15.     if [ $FAIL_COUNT -eq 3 ]; then
  16.         echo "Warning: $URL Access failure!"
  17.     fi
  18. done

批量主机远程执行命令脚本

  1. #!/bin/bash
  2. COMMAND=$*
  3. HOST_INFO=host.info
  4. for IP in $(awk '/^[^#]/{print $1}' $HOST_INFO); do
  5.     USER=$(awk -v ip=$IP 'ip==$1{print $2}' $HOST_INFO)
  6.     PORT=$(awk -v ip=$IP 'ip==$1{print $3}' $HOST_INFO)
  7.     PASS=$(awk -v ip=$IP 'ip==$1{print $4}' $HOST_INFO)
  8.     expect -c "
  9.        spawn ssh -p $PORT $USER@$IP
  10.        expect {
  11.           \"(yes/no)\" {send \"yes\r\"; exp_continue}
  12.           \"password:\" {send \"$PASS\r\"; exp_continue}
  13.           \"$USER@*\" {send \"$COMMAND\r exit\r\"; exp_continue}
  14.        }
  15.     "
  16.     echo "-------------------"
  17. done

一键部署 LNMP 网站平台脚本

  1. #!/bin/bash
  2. NGINX_V=1.15.6
  3. PHP_V=5.6.36
  4. TMP_DIR=/tmp
  6. INSTALL_DIR=/usr/local
  8. PWD_C=$PWD
  10. echo
  11. echo -e "\tMenu\n"
  12. echo -e "1. Install Nginx"
  13. echo -e "2. Install PHP"
  14. echo -e "3. Install MySQL"
  15. echo -e "4. Deploy LNMP"
  16. echo -e "9. Quit"
  18. function command_status_check() {
  19.         if [ $? -ne 0 ]; then
  20.                 echo $1
  21.                 exit
  22.         fi
  23. }
  25. function install_nginx() {
  26.     cd $TMP_DIR
  27.     yum install -y gcc gcc-c++ make openssl-devel pcre-devel wget
  28.     wget [url=http://nginx.org/download/nginx-]http://nginx.org/download/nginx-[/url]${NGINX_V}.tar.gz
  29.     tar zxf nginx-${NGINX_V}.tar.gz
  30.     cd nginx-${NGINX_V}
  31.     ./configure --prefix=$INSTALL_DIR/nginx \
  32.     --with-http_ssl_module \
  33.     --with-http_stub_status_module \
  34.     --with-stream
  35.     command_status_check "Nginx - 平台环境检查失败！"
  36.     make -j 4
  37.     command_status_check "Nginx - 编译失败！"
  38.     make install
  39.     command_status_check "Nginx - 安装失败！"
  40.     mkdir -p $INSTALL_DIR/nginx/conf/vhost
  41.     alias cp=cp ; cp -rf $PWD_C/nginx.conf $INSTALL_DIR/nginx/conf
  42.     rm -rf $INSTALL_DIR/nginx/html/*
  43.     echo "ok" > $INSTALL_DIR/nginx/html/status.html
  44.     echo '<?php echo "ok"?>' > $INSTALL_DIR/nginx/html/status.php
  45.     $INSTALL_DIR/nginx/sbin/nginx
  46.     command_status_check "Nginx - 启动失败！"
  47. }
  49. function install_php() {
  50.         cd $TMP_DIR
  51.     yum install -y gcc gcc-c++ make gd-devel libxml2-devel \
  52.         libcurl-devel libjpeg-devel libpng-devel openssl-devel \
  53.         libmcrypt-devel libxslt-devel libtidy-devel
  54.     wget [url=http://docs.php.net/distributions/php-]http://docs.php.net/distributions/php-[/url]${PHP_V}.tar.gz
  55.     tar zxf php-${PHP_V}.tar.gz
  56.     cd php-${PHP_V}
  57.     ./configure --prefix=$INSTALL_DIR/php \
  58.     --with-config-file-path=$INSTALL_DIR/php/etc \
  59.     --enable-fpm --enable-opcache \
  60.     --with-mysql --with-mysqli --with-pdo-mysql \
  61.     --with-openssl --with-zlib --with-curl --with-gd \
  62.     --with-jpeg-dir --with-png-dir --with-freetype-dir \
  63.     --enable-mbstring --enable-hash
  64.     command_status_check "PHP - 平台环境检查失败！"
  65.     make -j 4
  66.     command_status_check "PHP - 编译失败！"
  67.     make install
  68.     command_status_check "PHP - 安装失败！"
  69.     cp php.ini-production $INSTALL_DIR/php/etc/php.ini
  70.     cp sapi/fpm/php-fpm.conf $INSTALL_DIR/php/etc/php-fpm.conf
  71.     cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
  72.     chmod +x /etc/init.d/php-fpm
  73.     /etc/init.d/php-fpm start
  74.     command_status_check "PHP - 启动失败！"
  75. }
  77. read -p "请输入编号：" number
  78. case $number in
  79.     1)
  80.         install_nginx;;
  81.     2)
  82.         install_php;;
  83.     3)
  84.         install_mysql;;
  85.     4)
  86.         install_nginx
  87.         install_php
  88.         ;;
  89.     9)
  90.         exit;;
  91. esac

一键查看服务器资源利用率

  1. #!/bin/bash
  2. function cpu() {
  3.     NUM=1
  4.     while [ $NUM -le 3 ]; do
  5.         util=`vmstat |awk '{if(NR==3)print 100-$15"%"}'`
  6.         user=`vmstat |awk '{if(NR==3)print $13"%"}'`
  7.         sys=`vmstat |awk '{if(NR==3)print $14"%"}'`
  8.         iowait=`vmstat |awk '{if(NR==3)print $16"%"}'`
  9.         echo "CPU - 使用率: $util , 等待磁盘IO响应使用率: $iowait"
  10.         let NUM++
  11.         sleep 1
  12.     done
  13. }
  15. function memory() {
  16.     total=`free -m |awk '{if(NR==2)printf "%.1f",$2/1024}'`
  17.     used=`free -m |awk '{if(NR==2) printf "%.1f",($2-$NF)/1024}'`
  18.     available=`free -m |awk '{if(NR==2) printf "%.1f",$NF/1024}'`
  19.     echo "内存 - 总大小: ${total}G , 使用: ${used}G , 剩余: ${available}G"
  20. }
  22. function disk() {
  23.     fs=$(df -h |awk '/^\/dev/{print $1}')
  24.     for p in $fs; do
  25.         mounted=$(df -h |awk '$1=="'$p'"{print $NF}')
  26.         size=$(df -h |awk '$1=="'$p'"{print $2}')
  27.         used=$(df -h |awk '$1=="'$p'"{print $3}')
  28.         used_percent=$(df -h |awk '$1=="'$p'"{print $5}')
  29.         echo "硬盘 - 挂载点: $mounted , 总大小: $size , 使用: $used , 使用率: $used_percent"
  30.     done
  31. }
  33. function tcp_status() {
  34.     summary=$(ss -antp |awk '{status[$1]++}END{for(i in status) printf i":"status[i]" "}')
  35.     echo "TCP连接状态 - $summary"
  36. }
  38. cpu
  39. memory
  40. disk
  41. tcp_status

找出占用 CPU 内存过高的进程脚本

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

自动发布 Java 项目（Tomcat）

  1. #!/bin/bash
  2. DATE=$(date +%F_%T)
  4. TOMCAT_NAME=$1
  5. TOMCAT_DIR=/usr/local/$TOMCAT_NAME
  6. ROOT=$TOMCAT_DIR/webapps/ROOT
  8. BACKUP_DIR=/data/backup
  9. WORK_DIR=/tmp
  10. PROJECT_NAME=tomcat-java-demo
  12. # 拉取代码
  13. cd $WORK_DIR
  14. if [ ! -d $PROJECT_NAME ]; then
  15.    git clone [url=https://github.com/lizhenliang/tomcat-java-demo]https://github.com/lizhenliang/tomcat-java-demo[/url]
  16.    cd $PROJECT_NAME
  17. else
  18.    cd $PROJECT_NAME
  19.    git pull
  20. fi
  22. # 构建
  23. mvn clean package -Dmaven.test.skip=true
  24. if [ $? -ne 0 ]; then
  25.    echo "maven build failure!"
  26.    exit 1
  27. fi
  29. # 部署
  30. TOMCAT_PID=$(ps -ef |grep "$TOMCAT_NAME" |egrep -v "grep|$$" |awk 'NR==1{print $2}')
  31. [ -n "$TOMCAT_PID" ] && kill -9 $TOMCAT_PID
  32. [ -d $ROOT ] && mv $ROOT $BACKUP_DIR/${TOMCAT_NAME}_ROOT$DATE
  33. unzip $WORK_DIR/$PROJECT_NAME/target/*.war -d $ROOT
  34. $TOMCAT_DIR/bin/startup.sh

自动发布 PHP 项目脚本

  1. #!/bin/bash
  2. DATE=$(date +%F_%T)
  4. WWWROOT=/usr/local/nginx/html/$1
  7. BACKUP_DIR=/data/backup
  8. WORK_DIR=/tmp
  9. PROJECT_NAME=php-demo
  12. # 拉取代码
  13. cd $WORK_DIR
  14. if [ ! -d $PROJECT_NAME ]; then
  15.    git clone [url=https://github.com/lizhenliang/php-demo]https://github.com/lizhenliang/php-demo[/url]
  16.    cd $PROJECT_NAME
  17. else
  18.    cd $PROJECT_NAME
  19.    git pull
  20. fi
  23. # 部署
  24. if [ ! -d $WWWROOT ]; then
  25.    mkdir -p $WWWROOT
  26.    rsync -avz --exclude=.git $WORK_DIR/$PROJECT_NAME/* $WWWROOT
  27. else
  28.    rsync -avz --exclude=.git $WORK_DIR/$PROJECT_NAME/* $WWWROOT
  29. fi