July 21, 2020

Use the rundig script to run the ht://Dig programs to index your site. Type./rundig -v Rundig will run the htdig. htdig is indexing software similar in concept to Swish-e. It isn’t usually installed out of the box with Linux, but it should be an easily build. Htdig is a tool that provides search functionality for your web site. Htdig includes programs that will search and index your site. It also includes the forms that.

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There are many ways to index the content of your site. You could store the content in a database, index it and use SQL queries to look for records matching the search string. You could scan the site content to build word frequency tables, and use those tables to locate matching pages. You could use a natural-language or fuzzy search engine to create an index for your site and return results scored by relevance. Or you could save yourself a lot of development time and effort, and just install ht: In the words of its official website ht: This database, together with information on the URL associated with each document, is created every time you request a re-indexing of the site, and is merged with the results of previous index runs to create the foundation for the search engine.

Every time a search is executed, this database is scanned for matches to the search string and a list of results retrieved.

Site Search with HTDIG

The matches are further ranked according to an internal scoring system to filter down to the most relevant, and the results returned to the user, together with links to the pages on which the matches occurred. The process, though somewhat complicated, is nonetheless extremely fast and — thanks to intelligent search algorithms and scoring systems — also very accurate. Both search and result pages can be extensively customized in the ht: Drop by the official ht: Note that you will need a C compiler and a running Web server in order to use the software this tutorial uses GCC 3.


Before doing this, though, there are a couple of decisions you need to make. There are two primary components to ht: Additionally, the images used in the result page created after an ht: For an explanation of what each binary does, visit the ht: You can specify multiple URLs here.

htdig (site indexing)

Just separate them by some whitespace. The example here will cause the ht: You could also index all the URLs in a file like so: Alter this variable to reflect the URL at which indexing should begin, and save the changes back to the file.

You can also alter a number of other variables that control ht: Amongst other things, you can modify the location for the search database, specify a list of URLs and extensions to indrx bypassed while indexing, enable or disable the fuzzy logic algorithms, limit the amount of content stored in the search database and control the maximum amount of data read over an HTTP connection.

The next step is to actually build the search database. As noted previously, when indexing a Web site, ht: The next step is to integrate the ht: Enter a search string into the form field, and ht: Needless to say, you can customize this output, and even the manner in which the search is carried out. If, for example, you tell ht: There are a couple of important things to note here.

More information on what these variables htidg can be found in the ht: For a working example, refer inde the sample form installed by the software as discussed on the previous page.

htdig(1) – Linux man page

This utility also takes care of generating the result page, as per the formatting parameters specified. All these templates can contain special ht: Thus far, the previous examples have assumed a Web site consisting of static HTML pages as the base for ht: The answer, not surprisingly, is quite well.


Previous examples have also assumed that ht: Over the last few pages, I introduced you to the ht: With the tools installed, I then showed you how to configure it for your specific site hosting needs, and how to actually begin indexing a Web site.

With the index created, I then moved on to a discussion of the front-end interface, explaining how to build a search form to capture user queries, and pass those queries on to the ht: I also demonstrated the process of altering both the search form and the search results page to blend in with the design and aesthetics of your own site design. Finally, I showed you how you could use ht: A number of other alternatives also exist to ht: Examples are illustrative only, and are not meant for a production environment.


Melonfire provides no warranties or support for the source code described in this article. In this tutorial, find out how to obtain, install and use the popular ht: With its speed, unique indexing technology and huge database of Web pages, Google has rapidly become the best search engine on the Web, with results that are frighteningly accurate and search hdig that are optimized for the hyperlinked, diversified information structure of the Web.

Come on in and find out. Building An Index ht: Alternatively, create your own file and tell ht: You can inxex ht: Related Threads Related Articles Coding: