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(Ruby) SSH Exec (Execute Command Line)Shows how to execute a command on an SSH server and retrieve the command output.
require 'chilkat' # This example assumes the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. ssh = Chilkat::CkSsh.new() # Connect to an SSH server: # Hostname may be an IP address or hostname: hostname = "192.168.1.108" port = 22 success = ssh.Connect(hostname,port) if (success != true) print ssh.lastErrorText() + "\n"; exit end # Wait a max of 5 seconds when reading responses.. ssh.put_IdleTimeoutMs(5000) # Authenticate using login/password: success = ssh.AuthenticatePw("myLogin","myPassword") if (success != true) print ssh.lastErrorText() + "\n"; exit end # Open a session channel. (It is possible to have multiple # session channels open simultaneously.) channelNum = ssh.OpenSessionChannel() if (channelNum < 0) print ssh.lastErrorText() + "\n"; exit end # The SendReqExec method starts a command on the remote # server. The syntax of the command string depends on the # default shell used on the remote server to run the command. # On Windows systems it is CMD.EXE. On UNIX/Linux # systems the user's default shell is typically defined in /etc/password. # Here are some examples of command lines for <b>Windows SSH servers</b>: # Get a directory listing: cmd1 = "dir" # Do a nameserver lookup: cmd2 = "nslookup chilkatsoft.com" # List a specific directory. Given that the shell is CMD.EXE, backslashes must # be used: cmd3 = "dir \\temp" # Execute a sequence of commands. The syntax for CMD.EXE may be found # here: http://technet.microsoft.com/en-us/library/bb490880.aspx. Notice how the commands # are separated by "&&" and the entire command must be enclosed in quotes: cmd4 = "\"cd \\temp&&dir\"" # Here are two examples of command lines for <b>Linux/UNIX SSH servers</b>: # Get a directory listing: cmd5 = "ls -l /tmp" # Run a series of commands (syntax may depend on your default shell): cmd6 = "cd /etc; ls -la" # Request a directory listing on the remote server: # If your server is Windows, change the string from "ls" to "dir" success = ssh.SendReqExec(channelNum,"ls") if (success != true) print ssh.lastErrorText() + "\n"; exit end # Call ChannelReceiveToClose to read # output until the server's corresponding "channel close" is received. success = ssh.ChannelReceiveToClose(channelNum) if (success != true) print ssh.lastErrorText() + "\n"; exit end # Let's pickup the accumulated output of the command: cmdOutput = ssh.getReceivedText(channelNum,"ansi") if (ssh.get_LastMethodSuccess() != true) print ssh.lastErrorText() + "\n"; exit end # Display the remote shell's command output: print cmdOutput + "\n"; # Disconnect ssh.Disconnect() |
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