#!/usr/bin/env ruby
# 1t - hide cursor and last empty line in tail -f output
#
# Usage: tail -F /var/log/messages.log |1t

STDOUT.sync = STDIN.sync = true

begin
  system "tput", "civis"

  while line = gets
    puts  unless $. == 1
    print line.chomp
  end

rescue Interrupt

ensure
  puts
  system "tput", "cnorm"
end