Java code for auto answer

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  • vinothg
    New Member
    • Oct 2006
    • 21
    #1

    Java code for auto answer

    Hi ,

    I am new to java and i created a program which does an automatic SSH connection from host to a remote machine. I have created a channel from host to remote machine and i am executing certain scripts in the remote machine from the host. This has been done in java. Now the problem is when i run some scripts it prompts for Y/N type of question. I need to answer to that from host machine. Is there anyway to do this.

    Eg: In unix script we can use expect function to see what the question is and answer to it. I am looking for a similar function in java.

    Thanks ...
    Tags: None
    • JosAH
      Recognized Expert MVP
      • Mar 2007
      • 11453
      #2
      Basically you're starting a Process from your Java program and you want
      to talk and listen to/from it. Read the API documentation for the Process class
      and see how you can get InputStreams and OutputStreams from it. Use those
      streams to read from and write to that other process.

      kind regards,

      Jos

        Comment

        • vinothg
          New Member
          • Oct 2006
          • 21
          #3
          Yes you are correct. I have a InputStream and OutputStream. I know it is unfair to ask more than this. I have an inputStream which displays what happens on the remote machine i.e it shows the script running status. Any idea on how to grep for a particular statement. Just a clue on which function to use. In the mean time let me go through the API ...

          Thanks for your quick reply.

            Comment

            • JosAH
              Recognized Expert MVP
              • Mar 2007
              • 11453
              #4
              Originally posted by vinothg
              Yes you are correct. I have a InputStream and OutputStream. I know it is unfair to ask more than this. I have an inputStream which displays what happens on the remote machine i.e it shows the script running status. Any idea on how to grep for a particular statement. Just a clue on which function to use. In the mean time let me go through the API ...

              Thanks for your quick reply.
              You're welcome of course; such a Process is like a puppet on two strings: you
              can read from it and you can write to it. You can also wrap Readers and Writers
              around those streams so you can pump Strings into the Process and you can
              get Strings out of it. If you want to react 'intelligently' (mind the quotes) from the
              Process' output you can even match that output against regular expressions
              and act accordingly.

              kind regards,

              Jos

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