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Re: mc finds more than `find` finds?

Cross-posted to 3 groups.

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On Mon, 30 Nov 2015 15:59:09 +0000, Joe Beanfish wrote:

> On Sat, 28 Nov 2015 00:37:49 +0000, WhoCares wrote:
> 
>> I'm still searching for a way to know the pid of eg. the instance of
>> `wily` which is has a certain file open.
>> 
>> `pgrep wily` lists all the instances of 'wily'
>> 
>> I was hoping that, I'd find which wily has opened file *CONTROL* by:-
>> for PID in `pgrep wily`; do find /proc/$PID -exec grep -l "CONTROL" {}
>> \;  >> trace; done --- that's supposed to be ONE line ---
>> 
>> Using successive refinement:
>>  first I used mc to browse /proc/24357 to find a suitable search
>>  target.
>> Obviously "wily" would be there.
>> 
>>  Then I 'confirmed ?':
>> find /proc/24357 -exec grep  "wily" {} \;
>>  but that failed, although mc could find several "wily" in /proc/24357
>> 
>> OK, we know that /proc is some kind of spooky FS ? So, I copied to
>> /find, [using mc] 2 of the files of /proc/24357 which contain "wily",
>> and of course, they are found by:
>>   find /find -exec grep  "wily" {} \; ==
>> ./status
>> ./environ
>> 
>> How can mc look into /proc/24357 and show the contents if the basic
>> `find` can't see it?
> 
> Are you looking for file names or file content? Find looks at names then
> your exec'd grep will look at content in the found files. If you want to
> search by file names do
> 
>   for PID in `pgrep wily`; do find /proc/$PID -name "CONTROL" -print >>
>   trace; done
> 
> or
> 
>   for PID in `pgrep wily`; do find /proc/$PID -print|grep "CONTROL" >>
>   trace; done
------------
I'm wondering how/why I failed to explain what's required - because it's 
unusual?
Let's not waste effort, by partially completed journeys....
So I opened a wily on dir: /mnt/h15/var/CONTROL/
BTW I'm writing/testing this in wily now.
Like its example-that-plan9-copied: ETHO; <your written text is live/
executable>
For your 2 examples, "trace" is created -- but is empty.

-> HasOpenPath2: lsof | grep wily | grep CONTROL |awk '{print $1 " : "  
$2 " : "  $9 }'
== wily : 4272 : /mnt/h15/var/CONTROL

-> find /proc/4272 -exec grep  "CONTROL" {} \;  == nX:<nothing>

!?!? but when I open `mc` in /proc/4272 , and <search> string "CONTROL", 
I find:
 /proc/4272/environ =>
File: environ     Line 1 Col 3121    3587 bytes ==...
h15/usr/local/bin/wily.LC_COLLATE=C.PWD=/mnt/h15/var/CONTROL.INPUTRC=/etc/
input
--
So as seems reasonable: pid:4272 has PWD=/mnt/h15/var/CONTROL in its env

But HOW to print-out from 'dotty files'?
--------- I've just had a partial CRASH, and have lost details.
BTW, I'm wrong. This doesn't lead to the solution of: which WorkSpace has 
the
mc, which is currently open [with either of its 2 panels] on 
<stringInPATH>.

Consider the problem: you've got 20 WS/Desktops open, with 
`pgrep mc| wc -l` == 22
and some info arrives for <topicN> which you believe is ALREADY <open>
in some mc; but you need to know WHICH WS to open to get *that* mc.
Scrolling blackbox's WS-menu shows you which WS has a LIVE [one of 2]
panel on <topicN>. Advanced/smart-arse WMs show nothing. 

Where the mc was launched from [apparently in the env] is of no interest,
which is what my above test show.
BTW-BTW !! wily showed a <non returning proc> for 
   find /proc/4272 -exec grep  "CONTROL" {} \;
Messing with /proc/* is not advised?

Now I've copied /proc/<pid>/environ where I can investigate 
 how to grep it:
-> grep CONTROL /root/.pan2/article-cache/environ
== Binary file /root/.pan2/article-cache/environ matches

But as stated: mc let's you look inside <dotty files>.

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Thread

mc finds more than `find` finds? WhoCares@gmail.com - 2015-11-28 00:37 +0000
  Re: mc finds more than `find` finds? William Unruh <unruh@invalid.ca> - 2015-11-28 00:52 +0000
    Re: mc finds more than `find` finds? Arkadiusz Drabczyk <arkadiusz@domain.invalid> - 2015-11-28 16:15 +0000
      Re: mc finds more than `find` finds? William Unruh <unruh@invalid.ca> - 2015-11-28 17:59 +0000
        Re: mc finds more than `find` finds? Teemu Likonen <tlikonen@iki.fi> - 2015-11-28 20:07 +0200
          Re: mc finds more than `find` finds? William Unruh <unruh@invalid.ca> - 2015-11-28 20:44 +0000
            Re: mc finds more than `find` finds? Teemu Likonen <tlikonen@iki.fi> - 2015-11-29 12:41 +0200
        Re: mc finds more than `find` finds? Arkadiusz Drabczyk <arkadiusz@domain.invalid> - 2015-11-28 18:14 +0000
          Re: mc finds more than `find` finds? floyd@apaflo.com (Floyd L. Davidson) - 2015-11-28 11:52 -0900
            Re: mc finds more than `find` finds? Martijn Dekker <martijn@inlv.demon.nl> - 2015-11-29 16:35 +0100
              Re: mc finds more than `find` finds? floyd@apaflo.com (Floyd L. Davidson) - 2015-11-29 10:49 -0900
                Re: mc finds more than `find` finds? Richard Kettlewell <rjk@greenend.org.uk> - 2015-11-29 20:24 +0000
                Re: mc finds more than `find` finds? floyd@apaflo.com (Floyd L. Davidson) - 2015-11-29 14:09 -0900
                Re: mc finds more than `find` finds? Richard Kettlewell <rjk@greenend.org.uk> - 2015-11-30 09:24 +0000
                Re: mc finds more than `find` finds? Eef Hartman <E.J.M.Hartman@gmail.com> - 2015-11-30 10:08 +0000
              Re: mc finds more than `find` finds? William Unruh <unruh@invalid.ca> - 2015-11-29 20:07 +0000
              Re: mc finds more than `find` finds? Eef Hartman <E.J.M.Hartman@gmail.com> - 2015-11-29 20:10 +0000
            Re: mc finds more than `find` finds? no.top.post@gmail.com - 2016-01-04 23:07 +0000
              Re: mc finds more than `find` finds? The Natural Philosopher <tnp@invalid.invalid> - 2016-01-04 23:27 +0000
                Re: mc finds more than `find` finds? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-01-04 19:28 -0500
              Re: mc finds more than `find` finds? Jerry Peters <jerry@example.invalid> - 2016-01-05 21:05 +0000
  Re: mc finds more than `find` finds? marrgol <marrgol@address.invalid> - 2015-11-28 02:22 +0100
  Re: mc finds more than `find` finds? Joe Beanfish <joebeanfish@nospam.duh> - 2015-11-30 15:59 +0000
    Re: mc finds more than `find` finds? Unknown <dog@gmail.com> - 2016-01-03 12:52 +0000

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