From: Chad Perrin <perrin@...>
Date: 2007-08-24T02:48:42+09:00
Subject: Re: # of lines in a file

On Tue, Aug 21, 2007 at 07:34:26AM +0900, Jano Svitok wrote:
> On 8/21/07, blufur <blufur@gmail.com> wrote:
> > is there built-in method to determine the number of lines in a file?
> >
> > i tried file.readlines.length but it is very slow (dealing with files
> >  > 1 million lines)
> 
> if on unix:
> `wc -l #{filename}` or similar (I don't remember the exact syntax for wc)

Your use of syntax is correct, there.  The -l option tells wc to only
report the number of lines.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
John Kenneth Galbraith: "If all else fails, immortality can always be
assured through spectacular error."