


NNSPEW(8)                                               NNSPEW(8)


NNAAMMEE
       nnspew - subject database manager (nn)

SSYYNNOOPPSSIISS
       nnnnssppeeww

DDEESSCCRRIIPPTTIIOONN
       _n_n_s_p_e_w  builds a sorted database of all available subjects
       in the _n_n article database for fast access via the  _n_n_g_r_a_b
       utility.

       _n_n_s_p_e_w  should  be activated regularly to rebuild the sub-
       ject database, e.g. by _c_r_o_n.  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.

FFIILLEESS
       $db/subjects   subject database

SSEEEE AALLSSOO
       nn(1), nngrab(1), egrep(1)

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

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

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

















                           Release 6.4                          1


