# -*- coding: utf-8 -*-import paramikoimport threadingdef run(host_ip, username, password, command): ssh = paramiko.SSHClient() try: ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(host_ip, 22, username, password) print('===================exec on [%s]=====================' % host_ip) stdin, stdout, stderr = ssh.exec_command(command, timeout=300) out = stdout.readlines() for o in out: print (o.strip('\n')) except Exception as ex: print('error, host is [%s], msg is [%s]' % (host_ip, ex.message)) finally: ssh.close()if __name__ == '__main__': # 将需要批量执行命令的host ip地址填到这里 # eg: host_ip_list = ['IP1', 'IP2'] host_ip_list = ['147.116.20.19'] for _host_ip in host_ip_list: # 用户名，密码，执行的命令填到这里 run(_host_ip, 'tzgame', 'tzgame@1234', 'df -h') run(_host_ip, 'tzgame', 'tzgame@1234', 'ping -c 5 220.181.38.148')

pycrypto，由于 paramiko 模块内部依赖pycrypto，所以先下载安装pycrypto

pip3 install pycryptopip3 install paramiko

（1）基于用户名和密码的连接

import paramiko# 创建SSH对象ssh = paramiko.SSHClient()# 允许连接不在know_hosts文件中的主机ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())# 连接服务器ssh.connect(hostname='c1.salt.com', port=22, username='GSuser', password='123')# 执行命令stdin, stdout, stderr = ssh.exec_command('ls')# 获取命令结果result = stdout.read()# 关闭连接ssh.close()

（2）基于公钥秘钥连接

import paramikoprivate_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')# 创建SSH对象ssh = paramiko.SSHClient()# 允许连接不在know_hosts文件中的主机ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())# 连接服务器ssh.connect(hostname='c1.salt.com', port=22, username='wupeiqi', key=private_key)# 执行命令stdin, stdout, stderr = ssh.exec_command('df')# 获取命令结果result = stdout.read()# 关闭连接ssh.close()

SFTPClient:

　　用于连接远程服务器并进行上传下载功能。

（1）基于用户名密码上传下载

import paramikotransport = paramiko.Transport(('hostname',22))transport.connect(username='GSuser',password='123')sftp = paramiko.SFTPClient.from_transport(transport)# 将location.py 上传至服务器 /tmp/test.pysftp.put('/tmp/location.py', '/tmp/test.py')# 将remove_path 下载到本地 local_pathsftp.get('remove_path', 'local_path')transport.close()

（2）基于公钥秘钥上传下载

import paramikoprivate_key = paramiko.RSAKey.from_private_key_file('/home/auto/.ssh/id_rsa')transport = paramiko.Transport(('hostname', 22))transport.connect(username='GSuser', pkey=private_key )sftp = paramiko.SFTPClient.from_transport(transport)# 将location.py 上传至服务器 /tmp/test.pysftp.put('/tmp/location.py', '/tmp/test.py')# 将remove_path 下载到本地 local_pathsftp.get('remove_path', 'local_path')transport.close()

下面是多线程执行版本

#!/usr/bin/python#coding:utf-8import threadingimport subprocessimport osimport syssshport = 13131log_path = 'update_log'output = {}def execute(s, ip, cmd, log_path_today): with s: cmd = '''ssh -p%s root@%s -n "%s" ''' % (sshport, ip, cmd) ret = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) output[ip] = ret.stdout.readlines()if __name__ == "__main__": if len(sys.argv) != 3: print "Usage: %s config.ini cmd" % sys.argv[0] sys.exit(1) if not os.path.isfile(sys.argv[1]): print "Usage: %s is not file!" % sys.argv[1] sys.exit(1) cmd = sys.argv[2] f = open(sys.argv[1],'r') list = f.readlines() f.close() today = datetime.date.today() log_path_today = '%s/%s' % (log_path,today) if not os.path.isdir(log_path_today): os.makedirs(log_path_today) threading_num = 100 if threading_num > len(list): threading_num = len(list) s = threading.Semaphore(threading_num) for line in list: ip = line.strip() t = threading.Thread(target=execute,args=(s, ip,cmd,log_path_today)) t.setDaemon(True) t.start() main_thread = threading.currentThread() for t in threading.enumerate(): if t is main_thread: continue t.join() for ip,result in output.items(): print "%s: " % ip for line in result: print " %s" % line.strip() print "Done!"

以上脚本读取两个参数，第一个为存放IP的文本，第二个为shell命令

执行效果如下

# -*- coding:utf-8 -*-import requestsfrom requests.exceptions import RequestExceptionimport os, timeimport refrom lxml import etreeimport threadinglock = threading.Lock()def get_html(url): response = requests.get(url, timeout=10) # print(response.status_code) try: if response.status_code == 200: # print(response.text) return response.text else: return None except RequestException: print("请求失败") # return Nonedef parse_html(html_text): html = etree.HTML(html_text) if len(html) > 0: img_src = html.xpath("//img[@class='photothumb lazy']/@data-original") # 元素提取方法 # print(img_src) return img_src else: print("解析页面元素失败")def get_image_pages(url): html_text = get_html(url) # 获取搜索url响应内容 # print(html_text) if html_text is not None: html = etree.HTML(html_text) # 生成XPath解析对象 last_page = html.xpath("//div[@class='pages']//a[last()]/@href") # 提取最后一页所在href链接 print(last_page) if last_page: max_page = re.compile(r'(\d+)', re.S).search(last_page[0]).group() # 使用正则表达式提取链接中的页码数字 print(max_page) print(type(max_page)) return int(max_page) # 将字符串页码转为整数并返回 else: print("暂无数据") return None else: print("查询结果失败")def get_all_image_url(page_number): base_url = 'https://imgbin.com/free-png/naruto/' image_urls = [] x = 1 # 定义一个标识，用于给每个图片url编号，从1递增 for i in range(1, page_number): url = base_url + str(i) # 根据页码遍历请求url try: html = get_html(url) # 解析每个页面的内容 if html: data = parse_html(html) # 提取页面中的图片url # print(data) # time.sleep(3) if data: for j in data: image_urls.append({ 'name': x, 'value': j }) x += 1 # 每提取一个图片url，标识x增加1 except RequestException as f: print("遇到错误：", f) continue # print(image_urls) return image_urlsdef get_image_content(url): try: r = requests.get(url, timeout=15) if r.status_code == 200: return r.content return None except RequestException: return Nonedef main(url, image_name): semaphore.acquire() # 加锁，限制线程数 print('当前子线程: {}'.format(threading.current_thread().name)) save_path = os.path.dirname(os.path.abspath('.')) + '/pics/' try: file_path = '{0}/{1}.jpg'.format(save_path, image_name) if not os.path.exists(file_path): # 判断是否存在文件，不存在则爬取 with open(file_path, 'wb') as f: f.write(get_image_content(url)) f.close() print('第{}个文件保存成功'.format(image_name)) else: print("第{}个文件已存在".format(image_name)) semaphore.release() # 解锁imgbin-多线程-重写run方法.py except FileNotFoundError as f: print("第{}个文件下载时遇到错误，url为：{}：".format(image_name, url)) print("报错：", f) raise except TypeError as e: print("第{}个文件下载时遇到错误，url为：{}：".format(image_name, url)) print("报错：", e)class MyThread(threading.Thread): """继承Thread类重写run方法创建新进程""" def __init__(self, func, args): """ :param func: run方法中要调用的函数名 :param args: func函数所需的参数 """ threading.Thread.__init__(self) self.func = func self.args = args def run(self): print('当前子线程: {}'.format(threading.current_thread().name)) self.func(self.args[0], self.args[1]) # 调用func函数 # 因为这里的func函数其实是上述的main()函数，它需要2个参数；args传入的是个参数元组，拆解开来传入if __name__ == '__main__': start = time.time() print('这是主线程：{}'.format(threading.current_thread().name)) urls = get_all_image_url(5) # 获取所有图片url列表 thread_list = [] # 定义一个列表，向里面追加线程 semaphore = threading.BoundedSemaphore(5) # 或使用Semaphore方法 for t in urls: # print(i) m = MyThread(main, (t["value"], t["name"])) # 调用MyThread类，得到一个实例 thread_list.append(m) for m in thread_list: m.start() # 调用start()方法，开始执行 for m in thread_list: m.join() # 子线程调用join()方法，使主线程等待子线程运行完毕之后才退出 end = time.time() print(end-start) # get_image_pages(https://imgbin.com/free-png/Naruto)

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