# -*- coding: utf-8 -*-
import paramiko
import threading
def 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 pycrypto
pip3 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 paramiko
private_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 paramiko
transport = 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.py
sftp.put(\'/tmp/location.py\', \'/tmp/test.py\')
# 将remove_path 下载到本地 local_path
sftp.get(\'remove_path\', \'local_path\')
transport.close()
（2）基于公钥秘钥上传下载
import paramiko
private_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.py
sftp.put(\'/tmp/location.py\', \'/tmp/test.py\')
# 将remove_path 下载到本地 local_path
sftp.get(\'remove_path\', \'local_path\')
transport.close()
下面是多线程执行版本
#!/usr/bin/python
#coding:utf-8
import threading
import subprocess
import os
import sys
sshport = 13131
log_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 requests
from requests.exceptions import RequestException
import os, time
import re
from lxml import etree
import threading
lock = 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 None
def 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_urls
def get_image_content(url):
try:
r = requests.get(url, timeout=15)
if r.status_code == 200:
return r.content
return None
except RequestException:
return None
def 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")