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(Chilkat2-Python) SSH Quick/Simple Shell SessionSee more SSH ExamplesDemonstrates the simplified way to run multiple commands in a shell session on an SSH server.
import sys import chilkat2 # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. ssh = chilkat2.Ssh() 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 a shell session. # (The QuickShell method was added in Chilkat v9.5.0.65) channelNum = ssh.QuickShell() if (channelNum < 0): print(ssh.LastErrorText) sys.exit() # Construct a StringBuilder with multiple commands, one per line. # Note: The line-endings are potentially important. Some SSH servers may # require either LF or CRLF line endings. (Unix/Linux/OSX servers typically # use bare-LF line endings. Windows servers likely use CRLF line endings.) sbCommands = chilkat2.StringBuilder() sbCommands.Append("echo hello world\n") sbCommands.Append("date\n") sbCommands.Append("df\n") # For our last command, we're going to echo a marker string that # we'll use in ChannelReceiveUntilMatch below. # The use of single quotes around 'IS' is a trick so that the output # of the command is "THIS IS THE END OF THE SCRIPT", but the terminal echo # includes the single quotes. This allows us to read until we see the actual # output of the last command. sbCommands.Append("echo THIS 'IS' THE END OF THE SCRIPT\n") # Send the commands.. success = ssh.ChannelSendString(channelNum,sbCommands.GetAsString(),"ansi") if (success != True): print(ssh.LastErrorText) sys.exit() # Send an EOF to indicate no more commands will be sent. # For brevity, we're not checking the return values of each method call. # Your code should check the success/failure of each call. success = ssh.ChannelSendEof(channelNum) # Receive output up to our marker. success = ssh.ChannelReceiveUntilMatch(channelNum,"THIS IS THE END OF THE SCRIPT","ansi",True) # Close the channel. # It is important to close the channel only after receiving the desired output. success = ssh.ChannelSendClose(channelNum) # Get any remaining output.. success = ssh.ChannelReceiveToClose(channelNum) # Get the complete output for all the commands in the session. print("--- output ----") print(ssh.GetReceivedText(channelNum,"ansi")) # Here's our actual sample output: # Last login: Thu Dec 22 20:19:09 2016 from chilkat13 # # echo hello world # date # df # echo THIS 'IS' THE END OF THE SCRIPT # chilkatosx:~ chilkat$ echo hello world # hello world # chilkatosx:~ chilkat$ date # Thu Dec 22 20:30:48 CST 2016 # chilkatosx:~ chilkat$ df # Filesystem 512-blocks Used Available Capacity iused ifree %iused Mounted on # /dev/disk2 2176716032 265768928 1910435104 13% 33285114 238804388 12% / # devfs 383 383 0 100% 664 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 # chilkatosx:~ chilkat$ echo THIS 'IS' THE END OF THE SCRIPT # THIS IS THE END OF THE SCRIPT # chilkatosx:~ chilkat$ |
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