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Man Pages


Manual Reference Pages  -  NNGRAB (1)

NAME

nngrab - news retrieval by keyword (nn)

CONTENTS

Synopsis
Description
Files
See Also
Notes
Bugs
Author

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/subjectssubject 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

James A. Woods, NASA Ames Research Center
E-mail: jaw@ames.arc.nasa.gov
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--> NNGRAB (1) Release 6.6

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