length(Sys.glob(file.path(Dir, "*.pdf)))

or use the 'pattern' argument of list.files()

or use system(paste("ls", file.path(Dir, "*.pdf), "| wc -l"), intern=TRUE)

On Mon, 18 Aug 2008, Kurapati, Ravichandra (Ravichandra) wrote:

Hi

    Lets say,

Dir<-"/var/www/html/celnet/users/cxadmin/FlowDuration_DataVolume/fld_01_
08_18_08"

         There will be pdf and/or csv files.

       I want to know how many *.pdf files are  there in that
directory.

    How can I get using R commands.

Thanks

K.Ravichandra

--
Brian D. Ripley,                  [EMAIL PROTECTED]
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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