Export data from redis to a plain text files

redis2txt.rb

#!/usr/bin/env ruby

require "redis"

redis = Redis.new
redis.keys("*").each do |key|
  val = case redis.type(key)
        when "string"
          redis.get key
        when "list"
          redis.lrange key, 0, -1
        when "hash"
          redis.hgetall key
        when "set"
          redis.smembers key
        when "sortedset"
          redis.zrange key, 0, -1
        else
          "unknown"
        end
  puts "#{key}: #{val}"
end