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

[Gabor Grothendieck]

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]]
>>>
>>> ______________________________________________
>>> 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.
>