You can try something about like this:
foo - function() {
unlink(file3.txt)
file.rename(file2.txt, file3.txt)
file.rename(file1.txt, file2.txt)
sink(file1.txt)
cat(test file1)
sink()
}
On Fri, Nov 13, 2009 at 5:20 PM, Don MacQueen m...@llnl.gov wrote:
I am wondering if there is a CRAN package that includes a utility function
that will rotate file names, in the same sense that operating systems
sometimes rotate log files. Or maybe there's something in base R.
That is, we have a set of file names, say file1, file2, file3, and when the
function is called, file3 is deleted, file2 is renamed file3, file1 is
renamed file2, and the name of file1 is returned to the user's script, which
then writes to file1.
I've done some searching (RSiteSearch) but haven't found anything.
Thanks
-Don
--
--
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062
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Henrique Dallazuanna
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25° 25' 40 S 49° 16' 22 O
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