python - Get output from a Paramiko SSH exec_command continuously

Python - Get output from a Paramiko SSH exec_command continuously

To get the output continuously from exec_command in Paramiko SSH, you can use a loop to read from the stdout and stderr streams of the command. Here's how you can do it:

import paramiko def execute_ssh_command(hostname, username, password, command): # Create SSH client client = paramiko.SSHClient() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # Connect to the SSH server client.connect(hostname, username=username, password=password) # Execute the command stdin, stdout, stderr = client.exec_command(command) # Read output continuously while not stdout.channel.exit_status_ready(): # Read from stdout if stdout.channel.recv_ready(): data = stdout.channel.recv(1024) print(data.decode(), end='') # Read from stderr if stderr.channel.recv_stderr_ready(): error_data = stderr.channel.recv_stderr(1024) print(error_data.decode(), end='') # Close the SSH client client.close() # Example usage hostname = 'your_hostname' username = 'your_username' password = 'your_password' command = 'ls -l' execute_ssh_command(hostname, username, password, command)

In this example:

  • We create an SSH client using paramiko.SSHClient().
  • We connect to the SSH server using the provided hostname, username, and password.
  • We execute the command using client.exec_command(command) and get the stdin, stdout, and stderr streams.
  • We continuously read from the stdout and stderr streams using a loop until the command execution is complete.
  • Inside the loop, we check if data is available to read from stdout and stderr, and print it to the console.
  • Finally, we close the SSH client using client.close().

This approach allows you to continuously read the output from exec_command in Paramiko SSH as it becomes available, providing a way to monitor the command execution progress in real-time.

Examples

  1. "python Paramiko SSH exec_command continuous output"

    Description: This query is about retrieving continuous output from an SSH command executed using Paramiko in Python, useful for real-time monitoring or streaming data over SSH.

    import paramiko def continuous_ssh_output(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in stdout: print(line.strip()) ssh_client.close() continuous_ssh_output('your_command_here')

    Explanation: This code defines a function continuous_ssh_output that establishes an SSH connection using Paramiko, executes the specified command, and continuously prints the output line by line.

  2. "Python Paramiko SSH real-time command output"

    Description: This query targets obtaining real-time command output from an SSH session using Paramiko in Python, crucial for scenarios requiring immediate feedback or monitoring.

    import paramiko def real_time_ssh_output(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') channel = ssh_client.get_transport().open_session() channel.exec_command(command) while not channel.exit_status_ready(): if channel.recv_ready(): print(channel.recv(1024).decode('utf-8')) ssh_client.close() real_time_ssh_output('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and continuously prints real-time output as it becomes available, enhancing monitoring capabilities.

  3. "Python Paramiko SSH exec_command streaming output"

    Description: This query focuses on streaming output from an SSH command executed via Paramiko in Python, essential for scenarios where continuous data flow is required.

    import paramiko def stream_ssh_output(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in iter(stdout.readline, ''): print(line.strip()) ssh_client.close() stream_ssh_output('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and streams the output line by line, allowing for continuous processing or display.

  4. "Python Paramiko exec_command continuous output reading"

    Description: This query seeks methods for continuously reading output from an SSH command executed via Paramiko in Python, crucial for applications requiring ongoing data processing.

    import paramiko def continuous_output_reading(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) while not stdout.channel.exit_status_ready(): if stdout.channel.recv_ready(): print(stdout.channel.recv(1024).decode('utf-8')) ssh_client.close() continuous_output_reading('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and continuously reads the output from the command, facilitating ongoing data processing.

  5. "Python Paramiko SSH exec_command continuous output handling"

    Description: This query is about handling continuous output from an SSH command executed via Paramiko in Python, useful for applications requiring efficient data processing or analysis.

    import paramiko def continuous_output_handling(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in iter(lambda: stdout.readline(2048), ""): print(line.strip()) ssh_client.close() continuous_output_handling('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and handles continuous output efficiently for further processing or analysis.

  6. "Python Paramiko SSH exec_command real-time output"

    Description: This query focuses on obtaining real-time output from an SSH command executed via Paramiko in Python, essential for applications requiring immediate feedback or monitoring.

    import paramiko def real_time_output_handling(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in iter(stdout.readline, ""): print(line.strip()) ssh_client.close() real_time_output_handling('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and handles real-time output efficiently for immediate feedback or monitoring purposes.

  7. "Python Paramiko SSH exec_command continuous output display"

    Description: This query aims to display continuous output from an SSH command executed via Paramiko in Python, crucial for applications requiring real-time data presentation.

    import paramiko def continuous_output_display(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in stdout: print(line.strip()) ssh_client.close() continuous_output_display('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and continuously displays the output for real-time data presentation or monitoring.

  8. "Python Paramiko SSH exec_command continuous output reading"

    Description: This query focuses on reading continuous output from an SSH command executed via Paramiko in Python, essential for applications requiring ongoing data processing or analysis.

    import paramiko def continuous_output_reading(command): ssh_client = paramiko.SSHClient() ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh_client.connect(hostname='your_host', username='your_username', password='your_password') stdin, stdout, stderr = ssh_client.exec_command(command) for line in stdout: print(line.strip()) ssh_client.close() continuous_output_reading('your_command_here')

    Explanation: This code establishes an SSH connection using Paramiko, executes the specified command, and continuously reads the output for ongoing data processing or analysis.

More Tags

tablerow unique-values partitioning undefined-index mobile-webkit embedding code-readability python-s3fs aar cdi

More Programming Questions

More Everyday Utility Calculators

More Mixtures and solutions Calculators

More Geometry Calculators

More Date and Time Calculators