commandlinefu.com is the place to record those command-line gems that you return to again and again.
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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster.
Much shorter as well.
Shorter and made into a function.
Really bored during class so I made this...
Basically, you hold period (or whatever) and hit enter after a second and you need to make the next line of periods the same length as the previous line...
My record was 5 lines of the same length.
It's best if you do it one handed with your pointer on period and ring on enter.
(Apparently it is too long so I put it in sample output, I hope that is OK.)
Run the long command (or put it in your .bashrc) in sample output then run:
fbemailscraper YourFBEmail Password
Voila! Your contacts' emails will appear.
Facebook seems to have gotten rid of the picture encoding of emails and replaced it with a text based version making it easy to scrape!
Needs curl to run and it was made pretty quickly so there might be bugs.