bionic (8) nnspew.8.gz

NAME

       nnspew - subject database manager (nn)

SYNOPSIS

       nnspew

DESCRIPTION

       nnspew  builds a sorted database of all available subjects in the nn article database for fast access via
       the nngrab utility.

       nnspew should be activated regularly to rebuild the subject database, e.g. by cron.  For example:
          2 6,9,12,15,18,21 * * *  root /bin/nice /usr/lib/nn/nnspew

       Cross posted articles are only represented in the database once, and identical subjects in each group are
       merged  into  one  to  use  a  minimum  of  disk space.  This saves about 50% of the disk space otherwise
       required.

FILES

       $db/subjects   subject database

SEE ALSO

       nn(1), nngrab(1), egrep(1)

NOTES

       nngrap will use the subject database generated by nnspew independent of  its  age.   Thus,  if  you  stop
       running nnspew, remember to remove the subjects file as well.

BUGS

       nnmaster should automatically append new articles to the subject database to keep it up-to-date, and thus
       require less frequent rebuilding using nnspew.

AUTHOR

       James A. Woods, NASA Ames Research Center
       E-mail: jaw@ames.arc.nasa.gov