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why do I see cat /bin/cat in system monitor when I start some applications?

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alex

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Dec 19, 2012, 3:48:13 PM12/19/12
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Hi All,
why do I see "cat /bin/cat" in addition to a new process in system
monitor when I start some applications?
thanks.

Jens Thoms Toerring

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Dec 21, 2012, 7:07:26 PM12/21/12
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alex <al...@localhost.localdomain> wrote:
> why do I see "cat /bin/cat" in addition to a new process in system
> monitor when I start some applications?

Sorry, but what is what you call "system monitor"? You may wonder
but I've never had anything called like that and I'm using Linux
since a quite a long time, so this is a genuine question because
what "cat /bin/cat" means could depends on the what the output
of your "system monitor" tool is and could mean (beside a lot
of other things) that something is applying 'cat' on '/bin/cat'
or it might stand for "'cat' is running and the location of it
in the file system is '/bin/cat'". I definitely wouldn't expect
anyone to call 'cat' on its binary for too many good reasons.

The next question is if this happens with every application
you start or only for a certain subset (and, in that case,
can you detect any patterns)?. I'm asking because e.g. some
scripts may use 'cat' (sometimes for no good reasons;-) and
then 'cat' will, of course, appear in any tool that shows
what's currently running on your machine.

Regards, Jens
--
\ Jens Thoms Toerring ___ j...@toerring.de
\__________________________ http://toerring.de

Richard Kettlewell

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Dec 21, 2012, 7:19:51 PM12/21/12
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j...@toerring.de (Jens Thoms Toerring) writes:
> alex <al...@localhost.localdomain> wrote:

>> why do I see "cat /bin/cat" in addition to a new process in system
>> monitor when I start some applications?
>
> Sorry, but what is what you call "system monitor"? You may wonder
> but I've never had anything called like that and I'm using Linux
> since a quite a long time, so this is a genuine question because
> what "cat /bin/cat" means could depends on the what the output
> of your "system monitor" tool is and could mean (beside a lot
> of other things) that something is applying 'cat' on '/bin/cat'
> or it might stand for "'cat' is running and the location of it
> in the file system is '/bin/cat'". I definitely wouldn't expect
> anyone to call 'cat' on its binary for too many good reasons.

They are probably referring to gnome-system-monitor. This displays the
basename of the command in the 'Process Name' column and the full path
and arguments when you hover over it, which may be what they mean by
'cat /bin/cat'.

--
http://www.greenend.org.uk/rjk/
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