paramiko远程登录与sftp文件传输

小鱼儿 2022-02-28 13:28 279阅读 0赞

## 转载自[https://blog.csdn.net/sinat\_38068807/article/details/88750834][https_blog.csdn.net_sinat_38068807_article_details_88750834] ##

## **（一）基于用户名密码的远程登录加命令执行** ##

import paramiko
    #创建ssh链接实例
    ssh = paramiko.SSHClient()
    #创建白名单，默认不询问， 即允许连接不在known_hosts文件中的主机
    known_hosts = paramiko.AutoAddPolicy()
    ssh.set_missing_host_key_policy(known_hosts)
    #链接服务器
    ssh.connect(
        hostname = "10.10.65.65", # inux主机
        port = 22, #端口，默认22
        username = "chen", #用户名 ,也可登录到root
        password = "123" #密码
    )
    #执行命令
    stdin,stdout,stderr = ssh.exec_command("ls /")
        #ssh.exec_command() 返回三个类文件对象
        #stdin是远程主机接收我们写入到数据，stdout是远程主机向我们输出信息
        #stdin 是写权限的文件对象，标准输入
        #stdout 是读权限的文件对象，标准输出
        #stderr 是读权限的文件对象，标准错误，特殊的输出
    #查看执行结果
    result = stdout.read().decode()  # 得到远程主机的输出
     
    print(result)
    #关闭链接，释放内存
    ssh.close()

## **（二）基于多线程的远程登录** ##

import threading
     
    def Exec(command,ip,user,passwd,port = 22):
        """
        编写执行命令的模块
        """
        ssh = paramiko.SSHClient()
        know_hosts = paramiko.AutoAddPolicy()
        ssh.set_missing_host_key_policy(know_hosts)
        ssh.connect(
            hostname = ip,
            port = port,
            username = user,
            password = passwd
        )
     
        stdin, stdout, stderr = ssh.exec_command(command)
     
        result = stdout.read().decode()
        print("+++++++++++++++++%s+++++++++++++++++++++" % ip)
        print(result)
        print("+++++++++++++++++%s+++++++++++++++++++++" % ip)
     
        ssh.close()
     
    def main(command,pool):
        lenth = len(pool)
        thread_pool = []
        for i in range(lenth):
            t = threading.Thread(target = Exec,args = (command,)+pool[i])
            thread_pool.append(t)
        for t in thread_pool:
            t.start()
        for t in thread_pool:
            t.join()    # join见讲解    
                        #https://blog.csdn.net/sinat_38068807/article/details/88742964
     
    if __name__ == "__main__":
        command = input(">>>")
        pool = [
            ("10.10.65.95", "root", "123", 22),
            ("10.10.65.71", "root", "123",)
        ]
        main(command,pool)

## **（三）基于面向对象的多线程** ##

Pyhton 多线程模块threading通过Thread类构建新的线程

Thread类当做提供了run方法用于子类继承重写

当run方法被修改，在线程调用start的时候，会调用run的功能作为线程的功能。

import random
    import threading
    from time import sleep
     
    class ExecThread(threading.Thread):
        def __init__(self):
            super(ExecThread,self).__init__()
     
        def run(self):
            time = random.randint(1,3)
            sleep(time)
            print("hello world,I will sleep %s second"%time)
     
    pool = []
    for i in range(10):
        t = ExecThread()
        pool.append(t)
    for i in pool:
        i.start()
    for i in pool:
        i.join()

## **（四）多线程面向对象** ##

import threading
     
    class ExecThread(threading.Thread):
        def __init__(self,command,ip,user,passwd,port = 22):
            self.command = command
            self.ip = ip
            self.user = user
            self.password = passwd
            self.port = port
            super(ExecThread,self).__init__()
     
        def run(self):
            ssh = paramiko.SSHClient()
            know_hosts = paramiko.AutoAddPolicy()
            ssh.set_missing_host_key_policy(know_hosts)
            ssh.connect(
                hostname = self.ip,
                port = self.port,
                username = self.user,
                password = self.password
            )
     
            stdin, stdout, stderr = ssh.exec_command(self.command)
     
            result = stdout.read().decode()
            print("+++++++++++++++++%s+++++++++++++++++++++" % self.ip)
            print(result)
            print("+++++++++++++++++%s+++++++++++++++++++++" % self.ip)
     
            ssh.close()
     
    def main(command,pool):
        lenth = len(pool)
        thread_pool = []
        for i in range(lenth):
            ip = pool[i][0]
            user = pool[i][1]
            passwd = pool[i][2]
            if len(pool[i]) > 3:
                port = pool[i][0]
                t = ExecThread(command, ip, user, passwd, port)
            else:
                t = ExecThread(command, ip, user, passwd)
            thread_pool.append(t)
        for t in thread_pool:
            t.start()
        for t in thread_pool:
            t.join()
     
    if __name__ == "__main__":
        command = input(">>>")
        pool = [
            ("10.10.65.95", "root", "123"),
            ("10.10.65.71", "root", "123")
        ]
        main(command,pool)

## **（五）交互式编程** ##

import paramiko
     
    ssh = paramiko.SSHClient()
    know_hosts = paramiko.AutoAddPolicy()
    ssh.set_missing_host_key_policy(know_hosts)
    ssh.connect(
        hostname = "10.10.65.95", #主机
        port = 22, #端口，默认22
        username = "root", #用户名
        password = "123" #密码
    )
     
    shell = ssh.invoke_shell() #实例化一个terminal
    shell.settimeout(1) #命令执行的等待时间
     
    command = input(">>>")+"\n" #\n回车
    shell.send(command) #发送命令
     
    while True:
        try:
            recv = shell.recv(512).decode() #接受返回
            if recv:
                print(recv)
            else:
                continue
        except:
            command = input(">>>")+"\n"
            shell.send(command)
     
    ssh.close()

## **（六）sftp文件上传下载** ##

import paramiko
     
    trans = paramiko.Transport(
        sock=(
            "10.10.65.65", 22
        )
    )
     
    trans.connect(
        username="root",
        password="123"
    )
     
    sftp = paramiko.SFTPClient.from_transport(trans)
     
    sftp.put("ssh2.py","/opt/test.py")  # 将本机ssh2.py放到远程机的/opt下并命名test.py
    # sftp.get("/opt/main.py", "hello.py")
     
    sftp.close()

![20190322225801760.png][]

[https_blog.csdn.net_sinat_38068807_article_details_88750834]: https://blog.csdn.net/sinat_38068807/article/details/88750834
[20190322225801760.png]: /images/20220228/0ff26d9049704d33955d53b09d35f856.png