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Date:	Thu, 4 Aug 2005 16:29:33 -0400 (EDT)
From:	Jason Pyeron <jpyeron AT pdinc DOT us>
X-X-Sender:	jpyeron AT ns DOT pyerotechnics DOT com
To:	cygwin AT cygwin DOT com
Subject:	Re: pid confusion and pstree
In-Reply-To:	<Pine.GSO.4.61.0508041617420.3695@slinky.cs.nyu.edu>
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On Thu, 4 Aug 2005, Igor Pechtchanski wrote:

> On Thu, 4 Aug 2005, Jason Pyeron wrote:
>
>> On Thu, 4 Aug 2005, Igor Pechtchanski wrote:
>>
>>> On Thu, 4 Aug 2005, Jason Pyeron wrote:
>>>
>>>> sorry if this wraps.
>>>>
>>>> what is my WINPID for the current bash?
>>>>
>>>> [jpyeron AT mrlaptop mysql-4.1.13.new]$ ps -W | head -1 && ps -W | grep bash && pstree -Ahup
>>>>       PID    PPID    PGID     WINPID  TTY  UID    STIME COMMAND
>>>> I    2356       1    2356       2356  con 1003   Jul 31 /usr/bin/bash
>>>>       260       0       0        260    ?    0   Aug  3 C:\cygwin\bin\bash.exe
>>>>       484       0       0        484    ?    0   Aug  3 C:\cygwin\bin\bash.exe
>>>>      3004       0       0       3004    ?    0   Aug  3 C:\cygwin\bin\bash.exe
>>>>       456       0       0        456    ?    0   Aug  3 C:\cygwin\bin\bash.exe
>>>
>>> "ps -W" may not be aware of the Cygwin PID for some processes.
>>> How about "/bin/ps | head -1 && /bin/ps -a | grep $$" instead?
>
> Yes, the Cygwin PID and the WINPID are different in most cases.  Doesn't
> the command I suggested show the right WINPID for the current bash?

if there is a -aW then no, -a yes

hmmm? why are there zeros on the PGID, and why when using -W does PID 
change to WINPID? BUG?

[jpyeron AT mrlaptop mysql-4.1.13.new]$ ps |  head -1
       PID    PPID    PGID     WINPID  TTY  UID    STIME COMMAND
[jpyeron AT mrlaptop mysql-4.1.13.new]$ ps -a | grep 1592
      1592     228    1592        456    3 1003   Aug  3 /usr/bin/bash
S    2872    1592    2872       3124    3 1003 14:58:27 /usr/bin/pico
      2464    1592    3316       2464    3 1003 16:27:32 /usr/bin/bash
      3316    1592    3316       2472    3 1003 16:27:32 /usr/bin/ps
[jpyeron AT mrlaptop mysql-4.1.13.new]$ ps -W | grep 456
       456       0       0        456    ?    0   Aug  3 C:\cygwin\bin\bash.exe
[jpyeron AT mrlaptop mysql-4.1.13.new]$ ps -aW | grep 456
       456       0       0        456    ?    0   Aug  3 C:\cygwin\bin\bash.exe
[jpyeron AT mrlaptop mysql-4.1.13.new]$


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