[R] quick question : interpolating file name in pipe command

[Abhishek Pratap]

Hi Guys

I am trying to read a bunch of files in the loop but pipe function
which I use to cut few columns is somehow unable to interpolate the
file variable.


eg:

> file="check.txt"
> data  <- read.table(pipe("cut -f 2,3 file"), sep="\t", col.names=c('pos','cov') )
cut: file: No such file or directory

how can I pass variable file to pipe so that it can be interpolated.

Thanks!
-Abhi