bot_explicado.sh

curl -d 'track=one line' http://stream.twitter.com/track.json -ubotcualquiera:botpass > tweets.json 2> /dev/null & tail -f tweets.json | \
  while read tweet; do echo $tweet | \
    grep -E -o '"screen_name":"[[:alnum:]]+"' | cut -d '"' -f 4 | while read screen_name; do \
      echo "following: $screen_name"; curl -d '' http://twitter.com/friendships/create/$screen_name.json?follow=true -ubotcualquiera:botpass; \ 
    done ; \
  done