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python paramiko ssh

There is something wrong with the accepted answer, it sometimes (randomly) brings a clipped response from server. I do not know why, I did not investigate the faulty cause of the accepted answer because this code worked perfectly for me: import paramiko ip=’server ip’ port=22 username=”username” password=’password’ cmd=’some useful command’ ssh=paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(ip,port,username,password) stdin,stdout,stderr=ssh.exec_command(cmd) outlines=stdout.readlines() … Read more

Execute a command on Remote Machine in Python

Sure, there are several ways to do it! Let’s say you’ve got a Raspberry Pi on a raspberry.lan host and your username is irfan. subprocess It’s the default Python library that runs commands. You can make it run ssh and do whatever you need on a remote server. scrat has it covered in his answer. … Read more

How to execute a script remotely in Python using SSH?

The code below will do what you want and you can adapt it to your execute function: from paramiko import SSHClient host=”hostname” user=”username” client = SSHClient() client.load_system_host_keys() client.connect(host, username=user) stdin, stdout, stderr = client.exec_command(‘./install.sh’) print “stderr: “, stderr.readlines() print “pwd: “, stdout.readlines() Note, though, that commands will default to your $HOME directory, so you’ll either … Read more

List files on SFTP server matching wildcard in Python using Paramiko

The glob will not magically start working with a remote server, just because you have instantiated SSHClient before. You have to use Paramiko API to list the files, like SFTPClient.listdir: import fnmatch sftp = client.open_sftp() for filename in sftp.listdir(‘/home/test’): if fnmatch.fnmatch(filename, “*.txt”): print filename You can also use a regular expression for the matching, if … Read more

Why does Paramiko hang if you use it while loading a module?

Paramiko uses separate threads for the underlying transport. You should never have a module that spawns a thread as a side effect of importing. As I understand it, there is a single import lock available, so when a child thread from your module attempts another import, it can block indefinitely, because your main thread still … Read more

Do you have to check exit_status_ready if you are going to check recv_ready()?

That is, do I really first have to check the exit status before waiting for recv_ready() to say the data is ready? No. It is perfectly fine to receive data (e.g. stdout/stderr) from the remote process even though it did not yet finish. Also some sshd implementations do not even provide the exit status of … Read more

Wait until task is completed on Remote Machine through Python [duplicate]

This is indeed a duplicate of paramiko SSH exec_command(shell script) returns before completion, but the answer there is not terribly detailed. So… As you noticed, exec_command is a non-blocking call. So you have to wait for completion of the remote command by using either: Channel.exit_status_ready if you want a non-blocking check of the command completion … Read more

How can you get the SSH return code using Paramiko?

A much easier example that doesn’t involve invoking the “lower level” channel class directly (i.e. – NOT using the client.get_transport().open_session() command): import paramiko client = paramiko.SSHClient() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) client.connect(‘blahblah.com’) stdin, stdout, stderr = client.exec_command(“uptime”) print stdout.channel.recv_exit_status() # status is 0 stdin, stdout, stderr = client.exec_command(“oauwhduawhd”) print stdout.channel.recv_exit_status() # status is 127

“Failed to load HostKeys” warning while connecting to SFTP server with pysftp

I believe it’s a bug in pysftp. You get this everytime you use cnopts.hostkeys = None (despite the warning actually suggesting to use that). Anyway, you should not use cnopts.hostkeys = None, you lose security by doing so. For the correct solution, see Verify host key with pysftp. By your reference to key authentication, I … Read more

How to download only the latest file from SFTP server with Paramiko?

Use the SFTPClient.listdir_attr instead of the SFTPClient.listdir to get listing with attributes (including the file timestamp). Then, find a file entry with the greatest .st_mtime attribute. The code would be like: latest = 0 latestfile = None for fileattr in sftp.listdir_attr(): if fileattr.filename.startswith(‘Temat’) and fileattr.st_mtime > latest: latest = fileattr.st_mtime latestfile = fileattr.filename if latestfile … Read more