[R] select .txt from .txt in a directory

Simon Zehnder szehnder at uni-bonn.de
Fri Nov 8 18:44:55 CET 2013

I do not understand the question. If you already know the names what is the problem to select the files by names? 

If you have the names but not inside of R you have to find a name pattern to avoid typing them in. Is there a pattern, e.g. da.txt, db.txt, dc.txt? 

On 08 Nov 2013, at 18:33, Zilefac Elvis <zilefacelvis at yahoo.com> wrote:

> Hi,
> I have 300 .txt files in a directory. Out of this 300, I need just 100 of the files.
> I have the names of the 100 .txt files which are also found in the 300 .txt files.
> How can I extract only the 100 .txt files from the 300 ,txt files?
> e.g given d1.txt, ds.txt, dx.txt, df.txt...d300.txt, how can I select only d1.txt and df.txt? Remember, I have 300 of such and want to extract 100 of them with names known.
> Thanks for your great help.
> Atem.
> 	[[alternative HTML version deleted]]
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