gistfile1.rb

#!/usr/bin/env ruby
# gem install tumblr_client
# use 'tumblr' command to generate security credentials
# fill in security info from the generated file at ~/.tumblr
# fill in the source directory and destintion directory
# fill in blogname
# script will upload a file then move it to the destination directory

require 'rubygems'
require 'tumblr_client'

Tumblr.configure do |config|
  config.consumer_key       = ""
  config.consumer_secret    = ""
  config.oauth_token        = ""
  config.oauth_token_secret = ""
end

files     = Dir["/home/username/tumblr_images/*"]
final_dir = "/home/username/queued_tumblr_images/"

blog      = 'yourblog.tumblr.com'

# end variable section 

client = Tumblr::Client.new

files.each do |file|
  puts file
  response = client.photo(blog, {:data => [file], :state => 'queue' })

  if response.has_key?("errors")
    puts response
    exit 1
  end

  File.rename(file, final_dir + File.basename(file))
end