system() fails with fc.exe (PR#9868)

Full_Name: Jens Oehlschl?gel
Version:  2.5.1
OS: Windows
Submission from: (NULL) (62.159.183.42)


Even when specifying the full path, the output of fc is not sent to R (neither
shown nor returned). For example

system('c:\\WINDOWS\\system32\\fc.exe /?',intern=TRUE)

character(0)

When I do the same from python 2.3, I get

import os
os.system("c:\\WINDOWS\\system32\\fc /?")

Compares two files or sets of files and displays the differences between
them

FC [/A] [/C] [/L] [/LBn] [/N] [/OFF[LINE]] [/T] [/U] [/W] [/nnnn]
  [drive1:][path1]filename1 [drive2:][path2]filename2
FC /B [drive1:][path1]filename1 [drive2:][path2]filename2

 /A         Displays only first and last lines for each set of differences.
 /B         Performs a binary comparison.
 /C         Disregards the case of letters.
 /L         Compares files as ASCII text.
 /LBn       Sets the maximum consecutive mismatches to the specified
            number of lines.
 /N         Displays the line numbers on an ASCII comparison.
 /OFF[LINE] Do not skip files with offline attribute set.
 /T         Does not expand tabs to spaces.
 /U         Compare files as UNICODE text files.
 /W         Compresses white space (tabs and spaces) for comparison.
 /nnnn      Specifies the number of consecutive lines that must match
            after a mismatch.
 [drive1:][path1]filename1
            Specifies the first file or set of files to compare.
 [drive2:][path2]filename2
            Specifies the second file or set of files to compare.

-1

version

              _
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status
major          2
minor          5.1
year           2007
month          06
day            27
svn rev        42083
language       R
version.string R version 2.5.1 (2007-06-27)