From: w_a_x_man <w_a_x_man@...>
Date: 2009-08-08T09:10:05+09:00
Subject: Re: How do I add ?

On Aug 7, 7:02 pm, w_a_x_man <w_a_x_...@yahoo.com> wrote:
> On Aug 7, 11:44 am, chutsu <chu...@gmail.com> wrote:
>
> > I've got a file that is in two columns, how do I add the second column
> > up as I read through the file?
>
> > Code:
> > #!/usr/bin/ruby
> > file = File.open('some_file.txt')
>
> > # Going through each line
> > file.each do |line|
> >   data = line.split("\t")
> >   total += data[1]        # How do I make this line work?
> > end
>
> > puts total
>
> awk "{t += $2} END {print t}" some_file.txt

ruby -ane"BEGIN{$t=0}; $t += $F[1].to_f; END{p $t}" some_file.txt