Linux 常用运维脚本

#!/bin/sh
#实现通过主机名，端口清相应的memcache缓存 
if(($#<2));then
    echo "usage:$0 host port";
    exit 1;
fi
#如果参数缺失，退出程序，返回状态1
exec 6<>/dev/tcp/$1/$2 2>/dev/null;
#打开host的port 可读写的socket连接，与文件描述符6连接
if(($?!=0));then
    echo "open $1 $2 error!";
    exit 1;
fi
#如果打开失败，$?返回不为0，终止程序
echo -e "flush_all">&6;
echo -e "quit">&6;
#将HEAD 信息，发送给socket连接
cat<&6;
#从socket读取返回信息，显示为标准输出
exec 6<&-;
exec 6>&-;
#关闭socket的输入，输出
exit 0;

#!/bin/bash
VM=$1
VBoxManage controlvm $VM poweroff
VBoxManage modifyvm $VM  --memory $2
VBoxManage startvm $VM --type headless

#!/bin/sh
#machine=phptest
machine=$1
VBoxManage controlvm "$machine" poweroff
disk=/home/xwx/VirtualBox\ VMs/$machine/${machine}_swap.vdi
#VBoxManage createhd --filename "$disk" --size 1024
#VBoxManage storageattach "$machine" --storagectl "IDE" --port 1 --type hdd --medium $disk
#VBoxManage storageattach "$machine" --storagectl SATA --port 1 --type hdd --medium $disk
VBoxManage storageattach "$machine" --storagectl "SATA 控制器" --port 1 --type hdd --medium "$disk"

#!/bin/bash
# set modify
ip=/etc/network/interfaces
hn=/etc/hostname
netmask=255.255.255.0
network=192.168.20.0
broadcast=192.168.20.255
gateway=192.168.20.1
# mod ip、mask、gw、dns、hostname
cp $ip /etc/network/interfaces.bak
sed -ri 's/(iface eth0 inet).*/\iface eth0 inet static/' /etc/network/interfaces
echo "Please input IP:"
read ipadd
   if [ -n "$ipadd" ]; then
     echo "address $ipadd" >> $ip
     echo "Modify Completed "
   else
     echo "Not Modified"
   fi
echo "netmask $netmask" >> $ip
echo "Netmask Modify Completed "
echo "network $network" >> $ip
echo "Network Modify Completed "
echo "broadcast $broadcast" >> $ip
echo "Broadcast Modify Completed "
echo "gateway $gateway" >> $ip
echo "Gateway Modify Completed "
echo "Please input hostname:"
read hostname
if [ -n "$hostname" ]; then
   echo "$hostname" > $hn
   echo "Modify Completed "
else
   echo "Default Hostname"
fi
echo "All modification completion"
read -n1 -p "Whether restart network [Y/N]?"
case $REPLY in
Y|y) echo
       /etc/init.d/networking restart;;
N|n) echo
       echo "Network needs to restart to take effect!!!!!!";;
esac
exit

###################################################################
#######mysqldump###################################################
#!/bin/sh
# -----------------------------
# the directory for story your backup file.
backup_dir="/home/your/backup"
# date format for backup file (dd-mm-yyyy)
time="$(date +"%Y%m%d")"
MKDIR="$(which mkdir)"
RM="$(which rm)"
MV="$(which mv)"
TAR="$(which tar)"
GZIP="$(which gzip)"
#针对不同系统，如果环境变量都有。可以去掉
# check the directory for store backup is writeable
test ! -w $backup_dir && echo "Error: $backup_dir is un-writeable." && exit 0
# the directory for story the newest backup
test ! -d "$backup_dir" && $MKDIR "$backup_dir"
$TAR -zcPf $backup_dir/$HOSTNAME.nginx.$time.tar.gz  /etc/nginx
$TAR -zcPf $backup_dir/$HOSTNAME.cron_daily.$time.tar.gz  /etc/cron.daily
#delete the oldest backup 30 days ago
find $backup_dir -name "*.gz" -mtime +30 |xargs rm -rf
exit 0;

#!/bin/bash
nginx_home=/etc/nginx
log_path=/var/log/nginx
tail -n10000 $log_path/access.log \
      |awk '{print $1,$12}' \
      |grep -i -v -E "google|yahoo|baidu|msnbot|FeedSky|sogou" \
      | grep -v '223.223.198.231' \
      |awk '{print $1}'|sort|uniq -c|sort -rn \
      |awk '{if($1>50)print "deny "$2";"}' >>./blockips.conf
sort ./blockips.conf |uniq -u  >./blockips_new.conf
mv ./blockips.conf ./blockips_old.conf
mv ./blockips_new.conf ./blockips.conf
cat ./blockips.conf
#service nginx  reload

#!/bin/sh
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color
function test_domain {
        local domain=$1
        status=`curl -s -o /dev/null -I -w "%{http_code}" $domain`
        if [ $status -eq '404' ]
        then
          printf "${domain}${RED}  ${status}${NC}\n"
        else
          printf "$domain$GREEN  $status$NC\n"
        fi
}
domain_list=$'bixuebihui.cn\nwww.bixuebihui.cn\ndev.bixuebihui.cn\nblog.bixuebihui.cn\nbixuebihui.com\nwww.bixuebihui.com'
while read -r domain; do
#       echo "... $domain ..."
   test_domain "http://$domain"
   test_domain "https://$domain"
done <<< "$domain_list"

ip route add 5.6.13.192/26 dev em1 src 5.6.13.218 table 10
ip route add default via 5.6.13.254 table 10
ip route add 5.6.13.192/26 dev em2 src 5.6.13.217 table 20
ip route add default via 5.6.13.254 table 20
ip route add 5.6.13.192/26 dev em1 src 5.6.13.218
ip route add 5.6.13.192/26 dev em2 src 5.6.13.217
ip route add default via 5.6.13.254
ip rule add from 5.6.13.218 table 10
ip rule add from 5.6.13.217 table 20
ip route flush cache

#!/bin/python
# -*- coding: utf-8 -*-
from flask import Flask
from flask import request
import json
import requests
app = Flask(__name__)
def transform(text):
    textMap = json.loads(text)
    nodePorturl = 'http://192.168.10.182:3672'
    externalURL = textMap['externalURL']
    print(externalURL)
    links =[]
    for alert in textMap['alerts']:
        print('-------------')
        time = alert['startsAt'] + ' -- ' + alert['endsAt']
        generatorURL = alert['generatorURL'];
        generatorURL = nodePorturl+generatorURL[generatorURL.index('graph'):]
        summary = alert['annotations']['summary']
        description = alert['annotations']['description']
        status = alert['status']
        title = alert['labels']['alertname']