From: "Esteban Manchado Velázquez" <zoso@...>
Date: 2005-10-13T03:32:47+09:00
Subject: Re: Removing blank lines

Hello Basi,

On Thu, Oct 13, 2005 at 03:26:52AM +0900, basi wrote:
> Hello,
> How does one delete blank lines from a text file? (I did try a number
> of things, but, I can't get any to work.)

---------------------------------- 8< ----------------------------------
zoso@velutha:~/tmp$ cat >test
one

two



three
four

five
zoso@velutha:~/tmp$ ruby -e 'puts File.readlines("test").find_all {|line| line !~ /^$/}'
one
two
three
four
five
---------------------------------- >8 ----------------------------------

Or you mean writing back the result to the file? In that case, I guess you'll
have to write it to another, temporal file, and then move it to the original
path.

    Regards,

-- 
Esteban Manchado Vel�zquez <zoso@foton.es> - http://www.foton.es
EuropeSwPatentFree - http://EuropeSwPatentFree.hispalinux.es