05-30-2019
Update:
This may be having an untended negative effect on SEO, because instead of "soft 404s" the search indexes are getting full of very old unix information, which may be of interest from an academic or historical perspective, are not really search terms which are relevant to today's problem solvers.
For example "Multics"... while this is historically interesting, it's not going to drive search results to the site from today's unix and linux users.
The same is true for other historical "keywords" and "historical bios".
Hmmmm.
I think we will need a more modern approach to making "soft 404" pages more appealing to Google, LOL
Maybe adding a relevant man page based on keyword matching to "thin" pages?
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LEARN ABOUT DEBIAN
perldig
PERLDIG(1p) User Contributed Perl Documentation PERLDIG(1p)
NAME
perldig - Dig up keywords in the local Perl documentation
SYNOPSIS
# Update the index (required before first start)
perldig -u
# Search for a keyword
perldig keyword(s)
DESCRIPTION
When using "perldig" for the first time, a new index needs to be created. Just call
$ perldig -u
and everything happens automatically: A crawler will detect locally installed Perl documentation pages, rummage through the POD and index
them. When this initial run has been completed, "perldig" is ready to process search requests:
$ perldig frobnicate
1) pod/perlguts.pod 2) pod/perlxstut.pod 3) pod/perlnewmod.pod
Enter number of choice:
The command above shows a search for the keyword "frobnicate". Yes, that's a word used in the Perl documentation! It shows three hits and
asks the user to enter a number between 1 and 3 to open the selected documentation page in a pager program (typically "less"). In there, an
in-text search for the expression can be started by using the "/" (slash) command.
If two or more keywords are given, the search will yield pages that contain all of them. When searching for phrases, please include quotes
(make sure to quote the quotes so the shell doesn't eat them):
$ perldig '"floating point"'
The underlying swish-e search engine also understands expressions connected via AND and OR:
$ perldig "'floating point' AND approximate AND 'real number'"
To keep the index up to date, it is probably a good idea to run a cronjob every morning:
00 4 * * * /usr/bin/perldig -u >/dev/null 2>&1
If you can read German, please check out this article in the "Linux- Magazin", where this script was originally published:
http://www.linux-magazin.de/Artikel/ausgabe/2003/10/perl/perl.html
EXAMPLES
# Update/create the index
$ perldig -u
$ perldig frobnicate
1) pod/perlguts.pod 2) pod/perlxstut.pod 3) pod/perlnewmod.pod
Enter number of choice: 1
[ ... perlguts man page shows ... ]
FILES
"perldig" puts the swish-e index files into the folder ".perldig" in the user's home directory.
LEGALESE
Copyright 2003-2005 by Mike Schilli, all rights reserved. This program is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
AUTHOR
2003, Mike Schilli <m@perlmeister.com>
perl v5.12.4 2005-08-22 PERLDIG(1p)