Linux Shell脚本案例

#!/bin/bash

DATE=$(date +%d/%b/%Y:%H:%M)

LOG_FILE=/usr/local/nginx/logs/demo2.access.log

ABNORMAL_IP=$(tail -n5000 $LOG_FILE |grep $DATE |awk '{a[$1]++}END{for(i in a)if(a[i]>10)print i}')

for IP in $ABNORMAL_IP; do

 if [ $(iptables -vnL |grep -c "$IP") -eq 0 ]; then

iptables -I INPUT -s $IP -j DROP

echo "$(date +'%F_%T') $IP" >> /tmp/drop_ip.log

fi

done

# yum install mailx

# vi /etc/mail.rc 

set from=baojingtongzhi@163.com smtp=smtp.163.com

set smtp-auth-user=baojingtongzhi@163.com smtp-auth-password=123456

set smtp-auth=login

#!/bin/bash

DATE=$(date +%F_%H-%M-%S)

HOST=localhost

USER=backup

PASS=123.com

BACKUP_DIR=/data/db_backup

DB_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "show databases;" 2>/dev/null |egrep -v "Database|information_schema|mysql|performance_schema|sys")

for DB in $DB_LIST; do

BACKUP_NAME=$BACKUP_DIR/${DB}_${DATE}.sql

if ! mysqldump -h$HOST -u$USER -p$PASS -B $DB > $BACKUP_NAME 2>/dev/null; then

echo "$BACKUP_NAME 备份失败!"

fi

done

#!/bin/bash

DATE=$(date +%F_%H-%M-%S)

HOST=localhost

USER=backup

PASS=123.com

BACKUP_DIR=/data/db_backup

DB_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "show databases;" 2>/dev/null |egrep -v "Database|information_schema|mysql|performance_schema|sys")

for DB in $DB_LIST; do

  BACKUP_DB_DIR=$BACKUP_DIR/${DB}_${DATE}

  [ ! -d $BACKUP_DB_DIR ] && mkdir -p $BACKUP_DB_DIR &>/dev/null

  TABLE_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "use $DB;show tables;" 2>/dev/null)

for TABLE in $TABLE_LIST; do

    BACKUP_NAME=$BACKUP_DB_DIR/${TABLE}.sql

    if ! mysqldump -h$HOST -u$USER -p$PASS $DB $TABLE > $BACKUP_NAME 2>/dev/null; then

        echo "$BACKUP_NAME 备份失败!"

fi

  done

done

#!/bin/bash

LOG_DIR=/usr/local/nginx/logs

YESTERDAY_TIME=$(date -d "yesterday" +%F)

LOG_MONTH_DIR=$LOG_DIR/$(date +"%Y-%m")

LOG_FILE_LIST="default.access.log"

for LOG_FILE in $LOG_FILE_LIST; do

[ ! -d $LOG_MONTH_DIR ] && mkdir -p $LOG_MONTH_DIR

mv $LOG_DIR/$LOG_FILE $LOG_MONTH_DIR/${LOG_FILE}_${YESTERDAY_TIME}

done

kill -USR1 $(cat /var/run/nginx.pid)

#!/bin/bash

# 日志格式: $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for"

LOG_FILE=$1

echo "统计访问最多的10个IP"

awk '{a[$1]++}END{print "UV:",length(a);for(v in a)print v,a[v]}' $LOG_FILE |sort -k2 -nr |head -10

echo "----------------------"

echo "统计时间段访问最多的IP"

awk '$4>="[01/Dec/2018:13:20:25" && $4<="[27/Nov/2018:16:20:49"{a[$1]++}END{for(v in a)print v,a[v]}' $LOG_FILE |sort -k2 -nr|head -10

echo "----------------------"

echo "统计访问最多的10个页面"

awk '{a[$7]++}END{print "PV:",length(a);for(v in a){if(a[v]>10)print v,a[v]}}' $LOG_FILE |sort -k2 -nr

echo "----------------------"

echo "统计访问页面状态码数量"

awk '{a[$7" "$9]++}END{for(v in a){if(a[v]>5)print v,a[v]}}' $LOG_FILE |sort -k3 -nr

#!/bin/bash

NIC=$1

echo -e " In ------ Out"

while true; do

OLD_IN=$(awk '$0~"'$NIC'"{print $2}' /proc/net/dev)

OLD_OUT=$(awk '$0~"'$NIC'"{print $10}' /proc/net/dev)

sleep 1

NEW_IN=$(awk  '$0~"'$NIC'"{print $2}' /proc/net/dev)

NEW_OUT=$(awk '$0~"'$NIC'"{print $10}' /proc/net/dev)

IN=$(printf "%.1f%s" "$((($NEW_IN-$OLD_IN)/1024))" "KB/s")

OUT=$(printf "%.1f%s" "$((($NEW_OUT-$OLD_OUT)/1024))" "KB/s")

echo "$IN $OUT"

sleep 1

done

#/bin/bash

# 设置时区并同步时间

ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

if ! crontab -l |grep ntpdate &>/dev/null ; then

(echo "* 1 * * * ntpdate time.windows.com >/dev/null 2>&1";crontab -l) |crontab

fi

# 禁用selinux

sed -i '/SELINUX/{s/permissive/disabled/}' /etc/selinux/config

# 关闭防火墙

if egrep "7.[0-9]" /etc/redhat-release &>/dev/null; then

systemctl stop firewalld

systemctl disable firewalld

elif egrep "6.[0-9]" /etc/redhat-release &>/dev/null; then

service iptables stop

chkconfig iptables off

fi

# 历史命令显示操作时间

if ! grep HISTTIMEFORMAT /etc/bashrc; then

echo 'export HISTTIMEFORMAT="%F %T whoami "' >> /etc/bashrc

fi

# SSH超时时间

if ! grep "TMOUT=600" /etc/profile &>/dev/null; then

echo "export TMOUT=600" >> /etc/profile

fi

sed -i 's/#PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config

# 禁止定时任务向发送邮件

sed -i 's/^MAILTO=root/MAILTO=""/' /etc/crontab

# 设置最大打开文件数

if ! grep "* soft nofile 65535" /etc/security/limits.conf &>/dev/null; then

cat >> /etc/security/limits.conf << EOF

* soft nofile 65535

* hard nofile 65535

EOF

fi

# 系统内核优化

cat >> /etc/sysctl.conf << EOF

net.ipv4.tcp_syncookies = 1

net.ipv4.tcp_max_tw_buckets = 20480

net.ipv4.tcp_max_syn_backlog = 20480

net.core.netdev_max_backlog = 262144

net.ipv4.tcp_fin_timeout = 20 

EOF

# 减少SWAP使用

echo "0" > /proc/sys/vm/swappiness

# 安装系统性能分析工具及其他

yum install gcc make autoconf vim sysstat net-tools iostat iftop iotp lrzsz -y

#!/bin/bash

HOST_INFO=host.info

for IP in $(awk '/^[^#]/{print $1}' $HOST_INFO); do

USER=$(awk -v ip=$IP 'ip==$1{print $2}' $HOST_INFO)

PORT=$(awk -v ip=$IP 'ip==$1{print $3}' $HOST_INFO)

TMP_FILE=/tmp/disk.tmp

ssh -p $PORT $USER@$IP 'df -h' > $TMP_FILE

USE_RATE_LIST=$(awk 'BEGIN{OFS="="}/^\/dev/{print $NF,int($5)}' $TMP_FILE)

for USE_RATE in $USE_RATE_LIST; do

PART_NAME=${USE_RATE%=*}

USE_RATE=${USE_RATE#*=}

if [ $USE_RATE -ge 80 ]; then

echo "Warning: $PART_NAME Partition usage $USE_RATE%!"

fi

done

done

#!/bin/bash 

HOST=localhost

USER=root

PASSWD=123.com

IO_SQL_STATUS=$(mysql -h$HOST -u$USER -p$PASSWD -e 'show slave status\G' 2>/dev/null |awk '/Slave_.*_Running:/{print $1$2}')

for i in $IO_SQL_STATUS; do

THREAD_STATUS_NAME=${i%:*}

THREAD_STATUS=${i#*:}

if [ "$THREAD_STATUS" != "Yes" ]; then

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]

fi

done

#!/bin/bash

MON_DIR=/opt

inotifywait -mqr --format %f -e create $MON_DIR |\

while read files; do

rsync -avz /opt /tmp/opt

#echo "$(date +'%F %T') create $files" | mail -s "dir monitor" [url=mailto:xxx@163.com]xxx@163.com[/url]

done

#!/bin/bash

DATE=$@

USER_FILE=user.txt

for USER in $USER_LIST; do

if ! id $USER &>/dev/null; then

PASS=$(echo $RANDOM |md5sum |cut -c 1-8)

useradd $USER

echo $PASS |passwd --stdin $USER &>/dev/null

echo "$USER   $PASS" >> $USER_FILE

echo "$USER User create successful."

else

echo "$USER User already exists!"

fi

done

#!/bin/bash 

URL_LIST="www.baidu.com [url=http://www.ctnrs.com]www.ctnrs.com[/url]"

for URL in $URL_LIST; do

FAIL_COUNT=0

for ((i=1;i<=3;i++)); do

HTTP_CODE=$(curl -o /dev/null --connect-timeout 3 -s -w "%{http_code}" $URL)

if [ $HTTP_CODE -eq 200 ]; then

echo "$URL OK"

break

else

echo "$URL retry $FAIL_COUNT"

let FAIL_COUNT++

fi

done

if [ $FAIL_COUNT -eq 3 ]; then

echo "Warning: $URL Access failure!"

fi

done

#!/bin/bash

COMMAND=$*

HOST_INFO=host.info

for IP in $(awk '/^[^#]/{print $1}' $HOST_INFO); do

USER=$(awk -v ip=$IP 'ip==$1{print $2}' $HOST_INFO)

PORT=$(awk -v ip=$IP 'ip==$1{print $3}' $HOST_INFO)

PASS=$(awk -v ip=$IP 'ip==$1{print $4}' $HOST_INFO)

expect -c "

spawn ssh -p $PORT $USER@$IP

expect {

\"(yes/no)\" {send \"yes\r\"; exp_continue}

\"password:\" {send \"$PASS\r\"; exp_continue}

\"$USER@*\" {send \"$COMMAND\r exit\r\"; exp_continue}

}

"

echo "-------------------"

done

#!/bin/bash

NGINX_V=1.15.6

PHP_V=5.6.36

TMP_DIR=/tmp

INSTALL_DIR=/usr/local

PWD_C=$PWD

echo

echo -e "\tMenu\n"

echo -e "1\. Install Nginx"

echo -e "2\. Install PHP"

echo -e "3\. Install MySQL"

echo -e "4\. Deploy LNMP"

echo -e "9\. Quit"

function command_status_check() {

if [ $? -ne 0 ]; then

echo $1

exit

fi

}

function install_nginx() {

cd $TMP_DIR

yum install -y gcc gcc-c++ make openssl-devel pcre-devel wget

wget [url=http://nginx.org/download/nginx-]http://nginx.org/download/nginx-[/url]${NGINX_V}.tar.gz

tar zxf nginx-${NGINX_V}.tar.gz

cd nginx-${NGINX_V}

./configure --prefix=$INSTALL_DIR/nginx \

--with-http_ssl_module \

--with-http_stub_status_module \

--with-stream

command_status_check "Nginx - 平台环境检查失败！"

make -j 4

command_status_check "Nginx - 编译失败！"

make install

command_status_check "Nginx - 安装失败！"

mkdir -p $INSTALL_DIR/nginx/conf/vhost

alias cp=cp ; cp -rf $PWD_C/nginx.conf $INSTALL_DIR/nginx/conf

rm -rf $INSTALL_DIR/nginx/html/*

echo "ok" > $INSTALL_DIR/nginx/html/status.html

echo '<?php echo "ok"?>' > $INSTALL_DIR/nginx/html/status.php

$INSTALL_DIR/nginx/sbin/nginx

command_status_check "Nginx - 启动失败！"

}

function install_php() {

cd $TMP_DIR

yum install -y gcc gcc-c++ make gd-devel libxml2-devel \

libcurl-devel libjpeg-devel libpng-devel openssl-devel \

libmcrypt-devel libxslt-devel libtidy-devel

wget [url=http://docs.php.net/distributions/php-]http://docs.php.net/distributions/php-[/url]${PHP_V}.tar.gz

tar zxf php-${PHP_V}.tar.gz

cd php-${PHP_V}

./configure --prefix=$INSTALL_DIR/php \

--with-config-file-path=$INSTALL_DIR/php/etc \

--enable-fpm --enable-opcache \

--with-mysql --with-mysqli --with-pdo-mysql \

--with-openssl --with-zlib --with-curl --with-gd \

--with-jpeg-dir --with-png-dir --with-freetype-dir \

--enable-mbstring --enable-hash

command_status_check "PHP - 平台环境检查失败！"

make -j 4

command_status_check "PHP - 编译失败！"

make install

command_status_check "PHP - 安装失败！"

cp php.ini-production $INSTALL_DIR/php/etc/php.ini

cp sapi/fpm/php-fpm.conf $INSTALL_DIR/php/etc/php-fpm.conf

cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm

chmod +x /etc/init.d/php-fpm

/etc/init.d/php-fpm start

command_status_check "PHP - 启动失败！"

}

read -p "请输入编号：" number

case $number in

1)

install_nginx;;

2)

install_php;;

3)

install_mysql;;

4)

install_nginx

install_php

;;

9)

exit;;

esac

#!/bin/bash

function cpu() {

NUM=1

while [ $NUM -le 3 ]; do

util=vmstat |awk '{if(NR==3)print 100-$15"%"}'

user=vmstat |awk '{if(NR==3)print $13"%"}'

sys=vmstat |awk '{if(NR==3)print $14"%"}'

iowait=vmstat |awk '{if(NR==3)print $16"%"}'

echo "CPU - 使用率: $util , 等待磁盘IO响应使用率: $iowait"

let NUM++

sleep 1

done

}

function memory() {

total=free -m |awk '{if(NR==2)printf "%.1f",$2/1024}'

used=free -m |awk '{if(NR==2) printf "%.1f",($2-$NF)/1024}'

available=free -m |awk '{if(NR==2) printf "%.1f",$NF/1024}'

echo "内存 - 总大小: ${total}G , 使用: ${used}G , 剩余: ${available}G"

}

function disk() {

fs=$(df -h |awk '/^\/dev/{print $1}')

for p in $fs; do

mounted=$(df -h |awk '$1=="'$p'"{print $NF}')

size=$(df -h |awk '$1=="'$p'"{print $2}')

used=$(df -h |awk '$1=="'$p'"{print $3}')

used_percent=$(df -h |awk '$1=="'$p'"{print $5}')

echo "硬盘 - 挂载点: $mounted , 总大小: $size , 使用: $used , 使用率: $used_percent"

done

}

function tcp_status() {

summary=$(ss -antp |awk '{status[$1]++}END{for(i in status) printf i":"status[i]" "}')

echo "TCP连接状态 - $summary"

}

cpu

memory

disk

tcp_status

#!/bin/bash

DATE=$(date +%F_%T)

TOMCAT_NAME=$1

TOMCAT_DIR=/usr/local/$TOMCAT_NAME

ROOT=$TOMCAT_DIR/webapps/ROOT

BACKUP_DIR=/data/backup

WORK_DIR=/tmp

PROJECT_NAME=tomcat-java-demo

# 拉取代码

cd $WORK_DIR

if [ ! -d $PROJECT_NAME ]; then

git clone [url=https://github.com/lizhenliang/tomcat-java-demo]https://github.com/lizhenliang/tomcat-java-demo[/url]

cd $PROJECT_NAME

else

cd $PROJECT_NAME

git pull

fi

# 构建

mvn clean package -Dmaven.test.skip=true

if [ $? -ne 0 ]; then

echo "maven build failure!"

exit 1

fi

# 部署

TOMCAT_PID=$(ps -ef |grep "$TOMCAT_NAME" |egrep -v "grep|$$" |awk 'NR==1{print $2}')

[ -n "$TOMCAT_PID" ] && kill -9 $TOMCAT_PID

[ -d $ROOT ] && mv $ROOT $BACKUP_DIR/${TOMCAT_NAME}_ROOT$DATE

unzip $WORK_DIR/$PROJECT_NAME/target/*.war -d $ROOT

$TOMCAT_DIR/bin/startup.sh

#!/bin/bash

DATE=$(date +%F_%T)

WWWROOT=/usr/local/nginx/html/$1

BACKUP_DIR=/data/backup

WORK_DIR=/tmp

PROJECT_NAME=php-demo

# 拉取代码

cd $WORK_DIR

if [ ! -d $PROJECT_NAME ]; then

git clone [url=https://github.com/lizhenliang/php-demo]https://github.com/lizhenliang/php-demo[/url]

cd $PROJECT_NAME

else

cd $PROJECT_NAME

git pull

fi

# 部署

if [ ! -d $WWWROOT ]; then

mkdir -p $WWWROOT

rsync -avz --exclude=.git $WORK_DIR/$PROJECT_NAME/* $WWWROOT

else

rsync -avz --exclude=.git $WORK_DIR/$PROJECT_NAME/* $WWWROOT

fi