Message-ID: <419A2274.2050006@jhsph.edu>
Date: 2004-11-16T15:53:24Z
From: Roger D. Peng
Subject: deleting a file
In-Reply-To: <004401c4cbf2$fad82550$a3284e98@maths.soton.ac.uk>
You may be interested in one of dir.create(), file.exists(), or unlink().
-roger
Roger Gill wrote:
> Dear all,
>
> I have a very simple question. Simple, that is, if you know the answer.
>
> I wish to delete a file in a given directory after having first checked its
> existence. I issue the following commands
>
> path<-'c:example/R/'
>
> Thus creating the directory.
>
> indicator<-length(grep(filename,path))
>
> If indicator is greater than zero then the file exists. Now I wish to
> remove this file. However, I would like to make the code compatible for
> Linux/Windows and Macs.
>
> In Linux I would issue the command
>
> system('rm paste(path,'filename',sep='')')
>
> and this works just fine. It does not however work for windows, and I have
> no idea whether it would work on a mac.
>
> Is there a single command thay escapes me?
>
> Best Wishes
>
> Roger Gill
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>
--
Roger D. Peng
http://www.biostat.jhsph.edu/~rpeng/