search for: filename_c

I would like to have a function that inputs a file name, then reads that data file and does various stuff to it. Something like: doit<-function(filename) { x<-scan("~/rstuff/data/"filename) #for example, if filename is a0.dat, it will scan("~/rstuff/data/a0.dat") ... } Can someone please tell me how to do this? Thanks for any help! Bill Simpson