Paramiko未执行命令或shell-Python

我正在使用库在两台服务器之间运行

ssh

命令。 我的

“主”

服务器是一个

Fedora18

盒子，我的

“从”

是一台

Windows7

机器。除了在

windows7

机器上运行

ssh

服务器，我安装了。配置

freeshd

后，我可以

ssh

从Fedora18机器进入Windows机器，并执行类似

dir

的命令。 然而，当我尝试使用

Paramiko

这样做时，我的运气就不一样了：

import paramiko
import os
import errno

"""
written by Philippe Ribeiro

class Connection
stabilishes the ssh connection between two servers
allowing the executing of commands remotely
"""
class Connection:

    def __init__( self, hostname, username, password):
        """Create a ssh client using the paramiko library
        """
        self.host = hostname
        self.user = username
        self.password = password
        self.port = 23
        self.sshclient = paramiko.SSHClient()
        self.username = username
        self.password = password

        try:        
            self.sshclient.load_system_host_keys()
            self.sshclient.set_missing_host_key_policy( paramiko.AutoAddPolicy() )

            self.sshclient.connect( hostname=self.host, port=self.port, 
                    username=self.username, password=self.password )

            self.sftpclient = self.sshclient.open_sftp()

        except SSHException, e:
            print e

        except AuthenticationException, e:
            print e

        except BadHostKeyException, e:
            print e

    def close(self):
        """Closes a client using the Connection class' API
        """
        self.sshclient.close()
        return

    def remove_directory(self, path):
        """Remove remote directory that may contain files
        It does not support directories that contain subdiretories
        """
        if self.exists(path):
            for filename in self.sftpclient.listdir(path):
                filepath = os.path.join(path, filename)
                self.sfptclient.remove(filepath)
            self.sftpclient.rmdir(path)

        return

    def exists(self, path):
        """Return True if the remote path exists
        """
        try:
            self.sfptclient.stat(path)

        except IOError, e:
            if e.errno == errno.ENOENT:
                return False
                raise
            else:
                return True

    def put_directory(self, localdir, remotedir):
        """Put a directory of files on the remote server
        Create the remote directory if it does not exist
        Does not support directories that contain subdirectories
        Return the number of files transferred
        """
        if not self.exists(remotedir):
             self.sftp.client.mkdir(remotedir)
        count = 0
        for filename in os.listdir(localdir):
             self.sftpclient.put(
                  os.path.join(localdir, filename),
                  os.path.join(remotedir, filename)
             )
             count += 1
        return count

"""
Just for testing purposes
try to connect to a Windows machine from a Unix one
so it can execute commands remotely
"""
cmd  = ["cd ..", "dir" ]
client = Connection("hostname", "username", "password")

try:
    for c in cmd:
            stdin, stdout, stderr = client.sshclient.exec_command(c)
            print stdout.readlines()

except SSHException, e:
    print e

client.close()

但当我执行时：

python client.py

我得到：

['Unable to execute command or shell on remote system: Failed to Execute process.\r\n']
['Unable to execute command or shell on remote system: Failed to Execute process.\r\n']

---

有人能给我一个线索为什么不工作吗？我遗漏了什么吗？

用

cmd=[“cd….”，“dir”]

替换为

cmd=['cmd.exe/c“cd c:\&&dir”]

用

cmd=[“cd….”，“dir”]

替换

cmd=['cmd.exe/c“cd c:\&&dir”]

好例子@Yevgen。只是澄清一下-例如，如果您当前的目录位于带有字母D的驱动器上，并且您希望cd指向C:\，那么

cmd=['cmd.exe/C“C:&&dir”']

。没有cd和反斜杠，这是一个很好的例子@Yevgen。只是澄清一下-例如，如果您当前的目录位于带有字母D的驱动器上，并且您希望cd指向C:\，那么

cmd=['cmd.exe/C“C:&&dir”']

。不带cd和反斜杠