(CkPython) SSH Commands to Cisco Switch

Demonstrates how to establish an SSH session with a Cisco switch (or something similar) and send commands in a device console session.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

ssh = chilkat.CkSsh()

success = ssh.Connect("172.16.16.100",22)
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

# Authenticate using login/password:
success = ssh.AuthenticatePw("myLogin","myPassword")
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

# Start a shell session.
channelNum = ssh.QuickShell()
if (channelNum < 0):
    print(ssh.lastErrorText())
    sys.exit()

# If the CISCO switch returns a prompt with "#", then read until we get the prompt.
# (It's not actually required that we do this, but it helps to know that all is OK at this point..)
success = ssh.ChannelReceiveUntilMatch(channelNum,"#","utf-8",True)
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

# Show what we received so far:
print(ssh.getReceivedText(channelNum,"utf-8"))

# Send a "show clock" command.
success = ssh.ChannelSendString(channelNum,"show clock\n","utf-8")

# Read the output to the next interactive prompt.
success = ssh.ChannelReceiveUntilMatch(channelNum,"#","utf-8",True)
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

print(ssh.getReceivedText(channelNum,"utf-8"))

# Send another command and get the output, and so on...
success = ssh.ChannelSendString(channelNum,"some other command\n","utf-8")
success = ssh.ChannelReceiveUntilMatch(channelNum,"#","utf-8",True)
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

print(ssh.getReceivedText(channelNum,"utf-8"))

ssh.Disconnect()