[R] Calling FING.EXE under RGui.EXE for windows.

[Duncan Murdoch]

On 07/01/2010 1:25 PM, Uwe Ligges wrote:
> Argh. I see it as well. Will dig a lit tomorrow.

I don't know exactly what's going on, but it looks as though it is 
something specific to the find.exe utility, e.g. maybe it is assuming 
that it's being run inside a console and reading CONIN$ or writing to 
CONOUT$ without checking whether they can be opened.  When you run it 
from Rterm, Rterm is in a console, which appears to be good enough.

So it may be anyone who wants to use it will have to contact Microsoft 
to find out how...

Duncan Murdoch

> 
> Uwe
> 
> 
> 
> 
> 
> On 07.01.2010 12:25, Gabor Grothendieck wrote:
>> I get a problem with shell too:
>>
>> Under Rgui:
>>
>>> R.version.string
>> [1] "R version 2.10.1 Patched (2010-01-01 r50884)"
>>
>>> system("C:\\windows\\system32\\find /?", intern = TRUE)
>> character(0)
>>
>>> system("cmd /c C:\\windows\\system32\\find /?", intern = TRUE)
>> character(0)
>>
>>> shell("C:\\windows\\system32\\find /?")
>> Warning message:
>> In shell("C:\\windows\\system32\\find /?") :
>>   'C:\windows\system32\find /?' execution failed with error code 1
>>
>> They all work, i.e. they give the required help message, under Rterm
>> and when I issue this from the Windows console it works:
>> C:\windows\system32\find /?
>>
>>
>> 2010/1/7 Uwe Ligges<ligges at statistik.tu-dortmund.de>:
>>>
>>> On 07.01.2010 02:04, Gabor Grothendieck wrote:
>>>> If you have C:\Rtools\bin on your PATH note that it contains a
>>>> UNIX-like find utility that conflicts with the find utility in
>>>> Windows.  If that is the problem then remove that from your PATH and
>>>> then run the batch file.
>>>>
>>>> The batchfiles distribution at http://batchfiles.googlecode.com  has
>>>> utilities (Rgui.bat, R.bat, Rtools.bat, etc.) that will automatically
>>>> add C:\Rtools\bin to your path temporarily or only while R is running
>>>> so that you can leave it off your PATH.
>>>
>>> I guess it's the use of system() rather than shell() that causes the
>>> problem. Under Windows, you have to use shell in order to start a command
>>> interpreter.
>>>
>>> Uwe Ligges
>>>
>>>
>>>> On Wed, Jan 6, 2010 at 6:51 PM, John Schexnayder<jschex at us.ibm.com>
>>>>   wrote:
>>>>> This is sort of a strange bug.  Not show stopping, but annoying.  I was
>>>>> wondering if anyone else has noticed this and reported it before I submit
>>>>> a bug report.
>>>>>
>>>>> I noticed while running the RGui and attempting to debug one of my
>>>>> scripts
>>>>> that I encountered a Windows error informing me that "Find String [grep]
>>>>> Utility has encountered a problem and needs to close."  It is being
>>>>> generated by a call to a DOS batch file which contains a call to
>>>>> Find.exe.
>>>>>   It can be reproduced by simply typing  "System("find")" in RGui.  What I
>>>>> found strange is that I have been running this script daily without this
>>>>> problem for months.  I now realize I never ran that portion of the script
>>>>> while in RGui.exe.  It has always run in batch mode which is done by
>>>>> Rterm.exe.
>>>>>
>>>>> I have tried this on three separate machines now all running Windows XP
>>>>> SP3, with versions of R 2.8.1 and R 2.10.1  If executing "System("find")
>>>>> under RGui, an error window for the Find String Utility is generated and
>>>>> the command is not exectuted.  If the same command is issued in Rterm the
>>>>> expected "FIND: Parameter format not correct" message is properly
>>>>> returned.
>>>>>
>>>>> It doesn't seem an important bug, but it could be the canary in the mine
>>>>> for a larger problem somewhere down the road.
>>>>>
>>>>> Re,
>>>>> John Schexnayder
>>>>>
>>>>> IBM Tape Manufacturing - Information Technology
>>>>> San Jose, CA  95138
>>>>> JSchex at us.ibm.com
>>>>>
>>>>>         [[alternative HTML version deleted]]
>>>>>
>>>>> ______________________________________________
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>>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/posting-guide.html
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.