Get the number of lines in a text file using R

Question

Is there a way to get the number of lines in a file without importing it?

So far this is what I am doing

myfiles <- list.files(pattern=\"*.dat\")
         


        

Answer 1

Maybe I am missing something but usually I do it using length on top of ReadLines:

con <- file("some_file.format") 
length(readLines(con))

This at least has worked with many cases I had. I think it's kinda fast and it does only create a connection to the file without importing it.