python经常使用运维脚本

1.获取外网ip

#!/usr/bin/env python
-*- coding:utf-8 -*-
Time: 2019/12/20  10:05
import socket
import requests,re
#方法一
text=requests.get("http://txt.go.sohu.com/ip/soip").text
ip=re.findall(r'\d+.\d+.\d+.\d+',text)
#方法二
ipqwb = socket.getaddrinfo('www.baidu.com', 'http') #获取指定域名的A记录
nowIp = (ipqwb[0][4][0])    # 赋值
print("本机外网IP: " + ip[0])
print("qwb    IP: " + nowIp)

2.生成随机密码：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Time: 2019/11/21  11:43
import random,string
def passwd():
    src = string.ascii_letters + string.digits
    count = input('请确认要生成几条密码： ')
    list_passwds = []
    for i in range(int(count)):
        #密码位数为N+3，例以下面就是5+3=8位密码
        list_passwd_all = random.sample(src, 5) #从字母和数字中随机取5位
        list_passwd_all.extend(random.sample(string.digits, 1))  #让密码中必定包含数字
        list_passwd_all.extend(random.sample(string.ascii_lowercase, 1)) #让密码中必定包含小写字母
        list_passwd_all.extend(random.sample(string.ascii_uppercase, 1)) #让密码中必定包含大写字母
        random.shuffle(list_passwd_all) #打乱列表顺序
        str_passwd = ''.join(list_passwd_all) #将列表转化为字符串
        if str_passwd not in list_passwds: #判断是否生成重复密码
            list_passwds.append(str_passwd)
        print(list_passwds[i])
    #print(list_passwds)
passwd()

3.发送邮件：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Time: 2019/11/15  17:18
import smtplib
from email.mime.text import MIMEText
from time import sleep
from email.header import Header
host = 'smtp.163.com'
port = 25
sender = 'xxxx@163.com'
pwd = 'xxxxx'
receiver = ['22222222@qq.com', 'xxxxxxxx@163.com']  # 能够不用添加本身的邮箱，添加为了防止系统认为是垃圾邮箱发送失败会报错
body = '邮件内容'
title = '邮件标题'
def sentemail():
    msg = MIMEText(body, 'plain', 'utf-8')
    msg['subject'] = Header(title, 'utf-8').encode()
    msg['from'] = sender
    msg['to'] = ','.join(receiver)
    try:
        s = smtplib.SMTP(host, port)
        s.login(sender, pwd)
        s.sendmail(sender, receiver, msg.as_string())
        print ('Done.sent email success')
    except smtplib.SMTPException as e:
        print ('Error.sent email fail')
        print (e)
if __name__ == '__main__':
    sentemail()

4.基础log日志配置：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Time: 2019/11/27  13:04
import logging
def logger():
    logger=logging.getLogger()

    fh=logging.FileHandler("test.log")     #向文件中发送内容,有本身默认的日志格式
    ch=logging.StreamHandler()             #向屏幕发送文件，有本身默认的日志格式

    fm=logging.Formatter("%(asctime)s %(message)s")  #定义本身的日志格式
    fh.setFormatter(fm)                    #添加自定义的日志格式，若是不添加会用本身默认的日志格式
    ch.setFormatter(fm)

    logger.addHandler(fh)          #显示出fh,ch的日志
    logger.addHandler(ch)
    logger.setLevel("DEBUG")       #定义日志级别
    return logger                  # 返回函数对象

logger=logger()                     #调用函数

logger.debug("hello 1")            #打印日志
logger.info("hello 2")
logger.warning("hello 3")
logger.error("hello 4")
logger.critical("hello 5")

5.查看本地端口是否开放：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Time: 2019/11/21  11:05
import socket

port_number = [135,443,80,3306,22]

for index in port_number:
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    result = sock.connect_ex(('127.0.0.1', index))
    if result == 0:
        print("Port %d is open" % index)
    else:
        print("Port %d is not open" % index)
    sock.close()