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R.utils (version 1.1.1)

countLines: Counts the number of lines in a text file

Description

Counts the number of lines in a text file by count the number of occurances of platform-independent newlines (CR, LF, and CR+LF [1]), including a last line with neither. An empty file has zero lines.

Usage

## S3 method for class 'default}(file, chunkSize=5e+07, ...)':
countLinesundefined

 file{A connection or a pathname.}
   chunkSize{The number of bytes read in each chunk.}
   ...{Not used.}

 Returns an non-negative integer.

 [object Object]

 pathname <- system.file("NEWS", package="R.utils");
n <- countLines(pathname);
n2 <- length(readLines(pathname));
stopifnot(n == n2);

 [1] Page Newline, Wikipedia, July 2008.
       http://en.wikipedia.org/wiki/Newline


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Arguments