Thread: Getting Console / Terminal Text With PID

  1. #1
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    Getting Console / Terminal Text With PID

    Hello,

    I have a linux pc that will run a console terminal (3rd party app) that I want to monitor the output of and alert me of certain conditions.

    Is there a way to get the output of the console/terminal with just the pid id? I read about stdout but that requires you to start the process which I cannot always do. How can I get the output of the window when all I have is the PID?

    Thanks in advance.

  2. #2
    and the hat of int overfl Salem's Avatar
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    Do you have root privilege on the machine in question?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  3. #3
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    thanks for the reply, yes i do have root

  4. #4
    and the hat of int overfl Salem's Avatar
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    sudo strace -p12345 -e write
    For a process PID=12345

    strace(1): trace system calls/signals - Linux man page
    The -e option has many ways to control the verbosity of output.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  5. #5
    Programming Wraith GReaper's Avatar
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    It's somewhat of a hack, but you can. You need to be root and know the PID of the process. This link explains it:
    https://etbe.coker.com.au/2008/02/27...nning-process/
    Devoted my life to programming...

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