使用exec_command检查如果Windows目录存在

Question

我使用Python 2.7和2.1.2的paramiko检查，如果在一个服务器上运行的OpenSSH存在Windows目录。 Windows目录存在于服务器上，但我的代码没有找到它。从我的测试中，似乎我错误地指定了该目录，但我无法弄清楚为什么这不起作用。虽然我没有显示它，但如果我使用“/”而不是“\”，那么我不会成功。有没有人有任何想法如何解决这个问题，以及可能发生了什么？

更新1：这正常执行在Windows系统上，

stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\"') 

但是，我还是不能检查特定目录

更新2的存在：这似乎是工作。

stdin, stdout, stderr = ssh.exec_command('if [[ -d /cygdrive/d/log ]]; then echo Exists; fi') 

不过，我仍然有兴趣在任何解释，为什么下面不工作，或者更确切地说，不工作始终。

if_exist_path = "cmd /c if exist \"" + log_path + "\" echo Exists" 
stdin, stdout, stderr = ssh.exec_command(if_exist_path) 

考虑下面的代码。

import paramiko 
ssh = paramiko.SSHClient() 
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) 
ssh.connect("10.9.8.7", username="FakeUser", password="FakePassword") 
log_path = "D:\\Log" 
if_exist_path = "cmd /c if exist \"" + log_path + "\" echo Exists" 
print("Var 'if_path_exist' is: {}".format(if_exist_path)) 
stdin, stdout, stderr = ssh.exec_command(if_exist_path) 
stdoutput = stdout.readlines() 
stderror = stderr.readlines() 
print("First Stdout is {}".format(stdoutput)) 
print("First Stderr is {}".format(stderror)) 
print("") 
stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\\Log"') 
stdoutput = stdout.read() 
stderror = stderr.read() 
print("Second Stdout is {}".format(stdoutput)) 
print("Second Stderr is {}".format(stderror)) 
print("") 
stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\"') 
stdoutput = stdout.read() 
stderror = stderr.read() 
print("Third Stdout is {}".format(stdoutput)) 
print("Third Stderr is {}".format(stderror)) 
print("") 
stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\\"') 
stdoutput = stdout.read() 
stderror = stderr.read() 
print("Fourth Stdout is {}".format(stdoutput)) 
print("Fourth Stderr is {}".format(stderror)) 
print("") 
stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\Log"') 
stdoutput = stdout.read() 
stderror = stderr.read() 
print("Fifth Stdout is {}".format(stdoutput)) 
print("Fifth Stderr is {}".format(stderror)) 
print("") 
stdin, stdout, stderr = ssh.exec_command('cmd /c dir "D:\Log\"') 
stdoutput = stdout.read() 
stderror = stderr.read() 
print("Sixth Stdout is {}".format(stdoutput)) 
print("Sixth Stderr is {}".format(stderror)) 
print("") 

输出：

C:\Scripts>SO_Test.py 
Var 'if_path_exist' is: cmd /c if exist "D:\Log" echo Exists 
First Stdout is [] 
First Stderr is [] 

Second Stdout is Volume in drive D is Apps 
Volume Serial Number is xxxx-xxxx 

Directory of D:\ 


Second Stderr is File Not Found 


Third Stdout is Volume in drive D is Apps 
Volume Serial Number is xxxx-xxxx 

Directory of D:\ 

01/26/2017 10:49 PM <DIR>   Log 
01/12/2017 11:34 AM   12,887 Blah.ps1 
01/12/2017 01:16 PM   12,082 result.txt 
12/12/2016 03:39 PM   23,340 Blahv201.zip 
04/15/2017 10:37 PM <DIR>   Company 
01/27/2017 08:19 PM <DIR>   CompanyBackup 
01/12/2017 01:08 PM   10,060 Untitled1.ps1 
       4 File(s)   58,369 bytes 
       3 Dir(s) 175,276,904,448 bytes free 

Third Stderr is 

Fourth Stdout is 
Fourth Stderr is sh: -c: line 0: unexpected EOF while looking for matching `"' 
sh: -c: line 1: syntax error: unexpected end of file 

Fifth Stdout is Volume in drive D is Apps 
Volume Serial Number is xxxx-xxxx 

Directory of D:\ 


Fifth Stderr is File Not Found 

Sixth Stdout is Volume in drive D is Apps 
Volume Serial Number is xxxx-xxxx 

Directory of D:\ 


Sixth Stderr is File Not Found 

Answer 1

您正在寻找os.path.isdir，或os.path.exists 的目录。

if os.path.isdir("/test/to/dir") == True: 

    print('dir exists ') 

    # you next actions