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NNGRAB(1)                              General Commands Manual                             NNGRAB(1)



NAME
       nngrab - news retrieval by keyword (nn)

SYNOPSIS
       nngrab [ -c ] keyword

DESCRIPTION
       nngrab  invokes  nn on all USENET articles whose subject (or keyword) field(s) contain an in‐
       stance of keyword.  nngrab is a fast equivalent for:
            nn -mxX -s/keyword all

       For example,
            nngrab tesla
       will retrieve items concerning Nikola Tesla.

       Keyword case is ignored unless -c is specified, and the keyword can be a regular  expressions
       (escaped to avoid conflicts with the shell).  For example,
            nngrab "n.*tesla"

       The  range  of  search includes all newsgroups on the system, including ones which are unsub‐
       scribed.

FILES
       $db/subjects   subject database

SEE ALSO
       nn(1), nnspew(8), egrep(1)

NOTES
       nngrab can be much faster than the equivalent command shown above, if the tertiary news  sub‐
       ject  database  generated  by  the  nnspew(8) daemon exists.  To enable the faster operation,
       nnspew must be executed regularly by cron.

       nngrab uses egrep(1) to scan the subject database, so if you are not running fast egrep (GNU-
       style) this is all for naught.

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

BUGS
       Under version 6.4 onwards, search of the "Keywords:" field is not supported.
       Search on name is not possible either.

AUTHOR
       James A. Woods, NASA Ames Research Center
       E-mail: jaw AT ames.gov



4th Berkeley Distribution                    Release 6.6                                   NNGRAB(1)