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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
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 expres-
sions (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
subject database generated by the nnspew(8) daemon exists. To enable the faster opera-
tion, 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)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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