Getting metadata of a file using ruby

last_modified.rb

# pass file arguments in double quotes
# e.g last_modified("/etc/passwd")
def last_modified(file)
  t1 = File.stat(file).ctime
  t2 = Time.now
  elapsed = (t2-t1)/(60*60*24)
  puts "#{file} was modified #{elapsed} days ago."
end