python ssh之paramiko模块使用
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1.安装:
sudo pip install paramiko
2.连接到linux服务器
方法一:
#paramiko.util.log_to_file(‘ssh.log‘) #写日志文件 client = paramiko.SSHClient() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) #允许连接不在~/.ssh/known_hosts文件中的主机 client.connect(‘ip‘,22, ‘username‘,‘password‘) #指定ip地址,端口,用户名和密码进行连接
方法二:
transport = paramiko.Transport((‘ip‘, port)) #获取连接 transport.connect(username=‘username‘,password=‘password‘) ssh = paramiko.SSHClient() ssh._transport = transport
3.用transport实现上传下载以及命令的执行
# coding=utf-8 import paramiko class SSHConnection(object): def __init__(self, host, port, username, password): self._host = host self._port = port self._username = username self._password = password self._transport = None self._sftp = None self._client = None self._connect() # 建立连接 def _connect(self): transport = paramiko.Transport((self._host, self._port)) transport.connect(username=self._username, password=self._password) self._transport = transport #下载 def download(self, remotepath, localpath): if self._sftp is None: self._sftp = paramiko.SFTPClient.from_transport(self._transport) self._sftp.get(remotepath, localpath) #上传 def put(self, localpath, remotepath): if self._sftp is None: self._sftp = paramiko.SFTPClient.from_transport(self._transport) self._sftp.put(localpath, remotepath) #执行命令 def exec_command(self, command): if self._client is None: self._client = paramiko.SSHClient() self._client._transport = self._transport stdin, stdout, stderr = self._client.exec_command(command) data = stdout.read() if len(data) > 0: print data.strip() #打印正确结果 return data err = stderr.read() if len(err) > 0: print err.strip() #输出错误结果 return err def close(self): if self._transport: self._transport.close() if self._client: self._client.close() if __name__ == "__main__": conn = SSHConnection(‘192.168.87.200‘, 22, ‘username‘, ‘password‘) localpath = ‘hello.txt‘ remotepath = ‘/home/hupeng/WorkSpace/Python/test/hello.txt‘ print ‘downlaod start‘ conn.download(remotepath, localpath) print ‘download end‘ print ‘put begin‘ conn.put(localpath, remotepath) print ‘put end‘ conn.exec_command(‘whoami‘) conn.exec_command(‘cd WorkSpace/Python/test;pwd‘) #cd需要特别处理 conn.exec_command(‘pwd‘) conn.exec_command(‘tree WorkSpace/Python/test‘) conn.exec_command(‘ls -l‘) conn.exec_command(‘echo "hello python" > python.txt‘) conn.exec_command(‘ls hello‘) #显示错误信息 conn.close()
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