A simple script to log my weight in a csv stored in dropbox.

weight.rb

#!/usr/bin/env ruby

require 'time'
filename = '/Users/cgenco/Dropbox/log/weight.csv'
File.open(filename, "a") {} # create the file if it doesn't exist

weight = ARGV.first

unless weight
  puts "From: " + filename
  puts File.read(filename)
  exit
end

f = File.new(filename, 'a')
f.puts "#{Time.now.to_s}, #{weight}"

Usage:

~$ weight 167.2
~$ weight
From: ~/Dropbox/log/weight.csv
2013-05-01 17:53:15 -0500, 167.2