Will count the number of tab delimited fields in the passed file name

tabfieldcount.rb

#! ruby

if ARGV.length == 1
  if File.exists?(ARGV[0])
    file = File.open(ARGV[0], "r")
    puts "File name: #{ARGV[0]}"

    count = 1
    file.each do |line|
      line_count = line.split("\t").count
      if line_count != 23
        puts "Line: #{count} has #{line_count} fields. Fix it!"
      end

      count += 1
    end
  end
end