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#!/usr/bin/env ruby

u = ARGV[0][-1]
t = ARGV[0][0..-2].to_f

if u == 'h'
  t *= 60
  t *= 60
elsif u == 'm'
  t *= 60
elsif u == 's'
  true
else
  exit
end

t = t.round(0)

puts "sleeping for to #{t} seconds"

sleep t
`mpv ~/var/alarm.mp3 &>/dev/null`