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htdump - Online in the Cloud

Run htdump in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command htdump that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


htdump - write out an ASCII-text version of the document database

SYNOPSIS


htdump [options]

DESCRIPTION


Htdump writes out an ASCII-text version of the document database in the same form as the
-t option of htdig.

OPTIONS


-a Use alternate work files. Tells htdump to append .work to database files, allowing
it to operate on a second set of databases.

-c configfile
Use the specified configfile instead of the default.

-v Verbose mode. This doesn't have much effect.

File Formats


Document Database
Each line in the file starts with the document id followed by a list of fieldname :
value separated by tabs. The fields always appear in the order listed below:

u URL

t Title

a State (0 = normal, 1 = not found, 2 = not indexed, 3 = obsolete)

m Last modification time as reported by the server

s Size in bytes

H Excerpt

h Meta description

l Time of last retrieval

L Count of the links in the document (outgoing links)

b Count of the links to the document (incoming links or backlinks)

c HopCount of this document

g Signature of the document used for duplicate-detection

e E-mail address to use for a notification message from htnotify

n Date to send out a notification e-mail message

S Subject for a notification e-mail message

d The text of links pointing to this document. (e.g. <a
href="/docURL">description</a>)

A Anchors in the document (i.e. <A NAME=...)

Word Database
While htdump and htload don't deal with the word database directly, it's worth
mentioning it here because you need to deal with it when copying the ASCII
databases from one system to another. The initial word database produced by htdig
is already in ASCII format, and a binary version of it is produced by htmerge, for
use by htsearch. So, when you copy over the ASCII version of the document database
produced by htdump, you need to copy over the wordlist as well, then run htload to
make the binary document database on the target system, followed by running htmerge
to make the word index.

Each line in the word list file starts with the word
followed by a list of fieldname : value separated by tabs. The fields always appear
in the order listed below, with the last two being optional:

i Document ID

l Location of word in document (1 to 1000)

w Weight of word based on scoring factors

c Count of word's appearances in document, if more than 1

a Anchor number if word occurred after a named anchor

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