ERNIE is the Enhanced R-based tor Network Intelligence Engine
         (why ERNIE? because nobody liked BIRT; sorry for misspelling Tor)

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install to ~/ernie/

crontab entries
15 * * * * cd ~/ernie/ && ./download.sh

add soft link to /var/www
$ ln -s /home/karsten/ernie/website/ /var/www/metrics

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Importing descriptors

Grepping relevant dirreq-stats from extra-info descriptors (speeds up
  importing significantly!)

$ grep -REl "^extra-info moria1|^extra-info trusted" extra-info/ \
  | xargs -I {} mv {} relevant-extra-infos/

$ cd ~/ernie/ && ./import.sh