From: "lrlebron@..." <lrlebron@...>
Date: 2007-12-29T06:35:12+09:00
Subject: Re: How to jump over the first line in a file? (newbie)

On Dec 28, 3:01 pm, Joe <qbpro...@gmail.com> wrote:
> I don't see File.open here:http://ruby-doc.org/core/classes/File.html
> Am I looking in the wrong place?
>
> Also, how do you find out about globals like $. ?
>
> Joe
>
> On Dec 28, 2007 3:20 PM, lrleb...@gmail.com <lrleb...@gmail.com> wrote:
>
>
>
> > On Dec 28, 12:49 pm, Mark Toth <mark.t...@telia.com> wrote:
> > > I have this code:
>
> > >  file = "filename.txt"
> > >     File.open(file) do |sFile|
> > >     while line = sFile.gets
> > >         row = line.split("\t")
> > >       a_product = Product.new(
> > >         :sku => row[0] ,
> > >         :name => row[1] ,
> > >         :price => row[2] ,
> > >       a_product.save
> > >       end
> > >     end
>
> > > What if I want to jump over the first line of the file so it won´t be
> > > imported?
>
> > > Thank you,
>
> > > Mark
> > > --
> > > Posted viahttp://www.ruby-forum.com/.
>
> > The $. variable holds the line number so you could do something like
> > this:
>
> > File.open("filename.txt") do |aFile|
> >    aFile.each_line do |line|
> >      if $. > 1
> >         #processs data here
>
> >     end
> >   end
> > end
>
> > Luis

Open is a kernel method
http://ruby-doc.org/core/classes/Kernel.html#M005990

For variables like $. see Programming Ruby 2ed Chapter 22 (page 334
for $.)

Luis