Skipping the First Line when reading in a text file

rubyonrails-talk
1

I’m using ruby’s File to open and read in a text file inside of a rake task. Is there a setting where I can specify that I want the first line of the file skipped?

Here’s my code so far:

desc "Import users."

  task :import_users => :environment do

    File.open("users.txt", "r", '\r').each do |line|

      id, name, age, email = line.strip.split(',')

      u = User.new(:id => id, :name => name, :age => age, :email => email)

      u.save

    end

  end

Thanks,

Andrew

2

This is by no means a RoR question. But the solution is pretty simple, so I’ll give in.

One way to do it would be to just put “next if line.lineno == 1” at the beginning of the loop.

3

I am using csv...

it is work:

if you are interested try this way:

require 'csv'

reader = CSV.open("file_location", "r") reader.shift # this line is used to skipped first header line reader.each{|row| first_field = row[0] second_field = row[1]

Module_Name.create(   :attribute1 => first_field,   :attribute2 => second_field   ) }

Bye:) bdeveloper01

4

I don't know if CSV has the option, but FasterCSV has an option you can pass to inform it that the first line is the header row and it will skip it automatically...

5

Hai!

  That is depending upon gem. if you use csv then follow about steps and if you use fastercsv then follows this link

http://fastercsv.rubyforge.org/

Bye:) bdeveloper01