NNGRAB(1) UNIX System V (Release 6.5) 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 instance 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 unsubscribed.
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 subject 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
Page 1 (printed 1/11/99)
NNGRAB(1) UNIX System V (Release 6.5) NNGRAB(1)
James A. Woods, NASA Ames Research Center
E-mail: jaw@ames.arc.nasa.gov
Page 2 (printed 1/11/99)
