Using paramiko to connect to remote host. How do i move across directories and perform unix operations? Sample code below
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('remote ip', username='username', password='password')
ftp = ssh.open_sftp()
ssh.exec_command('cd /folder1/folder2')
How do i perform operations like listing files in a directory, checking current working directory and perform other unix commands?
This way (example on ls command):
import paramiko
import sys
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('x.x.x.x', port=22, username='user', password='pass')
stdin, stdout, stderr = ssh.exec_command('ls')
# Wait for the command to terminate
while not stdout.channel.exit_status_ready():
# Only print data if there is data to read in the channel
if stdout.channel.recv_ready():
rl, wl, xl = select.select([stdout.channel], [], [], 0.0)
if len(rl) > 0:
# Print data from stdout
print stdout.channel.recv(1024),
ssh.close()
Related
I am looking at downloading a file from URL into remote machine directly.. Is this possible with python paramiko sftp?
You can copy the download script first to the remote machine and the execute it
Example:
import paramiko
host="hostname"
user="username"
#SSH Connection#
ssh = paramiko.SSHClient()
ssh.load_host_keys()
ssh.connect(host, username=user, password='password')
#Copy Script to Remote#
sftp = ssh.open_sftp()
sftp.put("localpath", "remotepath")
sftp.close()
#Close#
stdin, stdout, stderr = ssh.exec_command("python " + "remotepath" + '/downloadfile.py')
print "stderr: ", stderr.readlines()
print "pwd: ", stdout.readlines()
or you can call the wget command directly instead of using the download script.
Example:
import paramiko
host="hostname"
user="username"
#SSH Connection#
ssh = paramiko.SSHClient()
ssh.load_host_keys()
ssh.connect(host, username=user, password="password")
stdin, stdout, stderr = ssh.exec_command("cd download_folder; wget http://DOWNLOAD.URL")
print "stderr: ", stderr.readlines()
print "pwd: ", stdout.readlines()
Am trying to take a screenshot of UNIX server from my Windows PC. My command is not working it seems. When I try the same command on terminal it saves the file, however it is not with my below code.
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(sftp_server, username=sftp_login, password=sftp_password)
stdin, stdout, stderr = ssh.exec_command("xwd -root | convert xwd:- screenshot22.jpg")
sftp = ssh.open_sftp()
transport = paramiko.Transport((sftp_server, sftp_port))
transport.connect(username = sftp_login, password = sftp_password)
sftp = paramiko.SFTPClient.from_transport(transport)
sftp.get("screenshot22.jpg", 'screenshot22.jpg', None)
sftp.close()
ssh.close()
Note:
1. xwd is installed on my UNIX Server.
2. Tried Import command, but that takes (2nd desktop of UNIX, not the one am trying to)
With the help of #Christopher Apple, I have figured out a way.
The working source code is,
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(sftp_server, username=sftp_login, password=sftp_password)
stdin, stdout, stderr = ssh.exec_command("xwd -out screenshot.xwd -root -display :0.0")
stdin, stdout, stderr = ssh.exec_command("convert screenshot.xwd screenshot22.jpg")
sftp = ssh.open_sftp()
transport = paramiko.Transport((sftp_server, sftp_port))
transport.connect(username = sftp_login, password = sftp_password)
sftp = paramiko.SFTPClient.from_transport(transport)
sftp.get("screenshot22.jpg", 'screenshot22.jpg', None)
sftp.close()
ssh.close()
import paramiko
paramiko.util.log_to_file(r'D:\logs\paramico.log')
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('xxx.xxx.xx.xx', port=22, username='xxxxx', password='xxxxxx')
stdin, stdout, stderr = ssh.exec_command('ll')
output = stdout.readlines()
print '\n'.join(output)
print output
This is a linux host and I want to list the files/folders present in it. But, I am getting empty list [].
Can please any one suggest me how to proceed to list the contents present in that.
import paramiko
paramiko.util.log_to_file(r'D:\logs\paramico.log')
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('xxx.xxx.xx.xx', port=22, username='xxxxx', password='xxxxxx')
stdin, stdout, stderr = ssh.exec_command('ls -al')
output = stdout.readlines()
output1 = stderr.readlines()
print '\n'.join(output)
print output
print output1
As my host has hidden files, I need to use ls -al
I'm using Python Paramiko and scp to perform some operations on remote machines. Some machines I work on require files to be available locally on their system. When this is the case, I'm using Paramiko and scp to copy the files across. For example:
from paramiko import SSHClient
from scp import SCPClient
ssh = SSHClient()
ssh.load_system_host_keys()
ssh.connect('192.168.100.1')
scp = SCPClient(ssh.get_transport())
scp.put('localfile', 'remote file')
scp.close()
ssh.close()
My question is, how can I check to see if 'localfile' exists on the remote machine before I try the scp?
I'd like to try and use Python commands where possible i.e. not bash
Use paramiko's SFTP client instead. This example program checks for existence before copy.
#!/usr/bin/env python
import paramiko
import getpass
# make a local test file
open('deleteme.txt', 'w').write('you really should delete this]n')
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
ssh.connect('localhost', username=getpass.getuser(),
password=getpass.getpass('password: '))
sftp = ssh.open_sftp()
sftp.chdir("/tmp/")
try:
print(sftp.stat('/tmp/deleteme.txt'))
print('file exists')
except IOError:
print('copying file')
sftp.put('deleteme.txt', '/tmp/deleteme.txt')
ssh.close()
except paramiko.SSHException:
print("Connection Error")
It should be possible to use only paramiko combined with 'test' command to check file existence. This doesn't require SFTP support:
from paramiko import SSHClient
ip = '127.0.0.1'
file_to_check = '/tmp/some_file.txt'
ssh = SSHClient()
ssh.load_system_host_keys()
ssh.connect(ip)
stdin, stdout, stderr = ssh.exec_command('test -e {0} && echo exists'.format(file_to_check))
errs = stderr.read()
if errs:
raise Exception('Failed to check existence of {0}: {1}'.format(file_to_check, errs))
file_exits = stdout.read().strip() == 'exists'
print file_exits
I need a method of paramiko based file transfer with a lightweight SSH2 server (dropbear) which has no support for SCP or SFTP. Is there a way of achieving a cat and redirect style file transfer, such as:
ssh server "cat remote_file" > local_file
with paramiko channels?
Can paramiko.Transport.open_channel() or Message() do the job? I am unsure of how to proceed.
The following may be useful as a starting point (e.g. ./sshpipe host "command"):
#! /usr/bin/env python
import sys
import paramiko
def sshpipe(host, line) :
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(host)
stdin, stdout, stderr = client.exec_command(line)
output = stdout.read()
sys.stdout.write(output)
stdin.close()
stdout.close()
stderr.close()
client.close()
sshpipe(sys.argv[1], sys.argv[2])