Is it possible to get the number of rows in a CSV file without opening it?

Question

I have a CSV file of size ~1 GB, and as my laptop is of basic configuration, I\'m not able to open the file in Excel or R. But out of curiosity, I would like to get the numb

Answer 1

Here is something I used:

testcon <- file("xyzfile.csv",open="r")
readsizeof <- 20000
nooflines <- 0
( while((linesread <- length(readLines(testcon,readsizeof))) > 0 ) 
nooflines <- nooflines+linesread )
close(testcon)
nooflines

Check out this post for more: https://www.r-bloggers.com/easy-way-of-determining-number-of-linesrecords-in-a-given-large-file-using-r/