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#!/usr/bin/env ruby -wKU
class MoveFile

  @@filename = ""
  @@destination = ""

  def initialize(filename, destination)
    @filename = filename
    @destination = destination
  end

  def checkleft
    return `df -kl`.split(" ")[10]
  end

  def checksize
    return `du -k #{@filename}`.split(" ")[0]
  end

  def enoughspace?
    return (self.checksize < self.checkleft ? true : false)
  end

  def movefile
    if self.enoughspace?
      if system("mv #{@filename} #{@destination}")
        print "Success!"
      else
        print "Failure!"
      end
    else
      print "Not enough space!"
    end
  end

end

file = MoveFile::new($*[0], $*[1])
file.movefile