Groups > comp.lang.java.programmer > #27805

can Java program abolish file descriptor 1 so no any programs can print to the monitor?

Newsgroups	comp.lang.java.programmer
Date	2014-03-21 13:13 -0700
Message-ID	<1df2cef3-b358-465c-9d56-1c8739a17051@googlegroups.com> (permalink)
Subject	can Java program abolish file descriptor 1 so no any programs can print to the monitor?
From	www <xsli2@yahoo.com>

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a program currently running is printing something to the terminal. I am wondering if I can use some Java to intercept those printed message so that those message do not show up on the terminal.

That program is not started by the Java program. I am working on Linux.

My understanding of file system is that there is a filedescriptor 0 -- the keyboard input are saved in that file and other programs take it from there; there is another filesdescriptor 1 -- the messages printed by computer programs are put into that file first, then its content is dumped to the monitor. So I think if I can let Java code erase my computer filedescriptor 1, then nothing will be printed to the monitor. file descriptor 2 is another file and is for the stderr.

I think this is an interesting exercise for me.

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Thread

can Java program abolish file descriptor 1 so no any programs can print to the monitor? www <xsli2@yahoo.com> - 2014-03-21 13:13 -0700
  Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-03-21 17:14 -0400
  Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Roedy Green <see_website@mindprod.com.invalid> - 2014-03-21 15:54 -0700
    Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Joerg Meier <joergmmeier@arcor.de> - 2014-03-21 23:59 +0100
      Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Roedy Green <see_website@mindprod.com.invalid> - 2014-03-22 02:32 -0700
        Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Joerg Meier <joergmmeier@arcor.de> - 2014-03-22 11:33 +0100
          Re: can Java program abolish file descriptor 1 so no any programs can print to the monitor? Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-03-22 11:24 +0000

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