kill_all_rails.rb

#!/usr/bin/env ruby
#actually I just wanted to try forking a gist :D

exit unless ARGV.size == 1

pids = %x[ps ax|grep #{ARGV[0]}|grep -v grep].split("\n").map{|line| line.strip.scan(/^\d+/).first.to_i} - [Process.pid]

if pids.any?
  system "kill #{pids.join(' ')}"
  puts "killed #{pids.size} #{ARGV[0]} instance(s)"
else
  puts "no rails processes found"
end