(CkPython) SSH Parallel Remote Commands on Single Server

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Shows how to execute multiple commands in parallel on a single SSH server and retrieve the command output for each.

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

ssh = chilkat.CkSsh()

port = 22
success = ssh.Connect("the-ssh-server.com",port)
if (success != True):
    print(ssh.lastErrorText())
    sys.exit()

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

# Start several commands on the server.
channel1 = ssh.QuickCmdSend("df")
if (channel1 < 0):
    print(ssh.lastErrorText())
    sys.exit()

channel2 = ssh.QuickCmdSend("date")
if (channel2 < 0):
    print(ssh.lastErrorText())
    sys.exit()

channel3 = ssh.QuickCmdSend("echo hello world")
if (channel3 < 0):
    print(ssh.lastErrorText())
    sys.exit()

# Now collect the results of each command.
pollTimeoutMs = 50
numFinished = 0
while numFinished < 3 :
    # Check to see if anything has finished.
    # QuickCmdCheck returns -1 if there are no errors and nothing else finished
    # QuickCmdCheck returns -2 if there was an error (such as a lost connection)
    # QuickCmdCheck returns a channel number if a channel finished.
    channel = ssh.QuickCmdCheck(pollTimeoutMs)
    if (channel == -2):
        print(ssh.lastErrorText())
        sys.exit()

    if (channel >= 0):
        print("---- channel " + str(channel) + " finished ----")
        print(ssh.getReceivedText(channel,"ansi"))
        numFinished = numFinished + 1

# --------------
# Sample output:

# 	---- channel 105 finished ----
# 	hello world
# 
# 	---- channel 104 finished ----
# 	Thu Dec 22 17:43:58 CST 2016
# 
# 	---- channel 103 finished ----
# 	Filesystem    512-blocks      Used  Available Capacity  iused     ifree %iused  Mounted on
# 	/dev/disk2    2176716032 265739728 1910464304    13% 33281464 238808038   12%   /
# 	devfs                382       382          0   100%      662         0  100%   /dev
# 	map -hosts             0         0          0   100%        0         0  100%   /net
# 	map auto_home          0         0          0   100%        0         0  100%   /home
# 	/dev/disk3s2      374668    374668          0   100%    93665         0  100%   /Volumes/Google Chrome