Free wiki software for linux

yawiki is a wiki system is a perfect place for working together and sharing information. The text syntax of a wiki system is really simple to learn. Getting started with a wiki system is easy.
This is yet another Java implementation of such a wiki system. Besides the basic wiki features, it covers quite a lot more.
Main features:
Basic Features:
- versioning of every page
- view the history and restore old versions
- page can be restricted to be edited by users only
- supports different themes
- search engine (jakarta lucene) integrated
- compare different versions of a page
- list last recent updates
Advanced features:
- included menu administration for every domain
- export to static HTML files
- SOAP interface and synchronisation
- manage tasks with the TaskManager
- send emails to yawiki and they will be processed and created as new pages or added to existing pages
- every user can bookmark pages to find them later
- rss feeds for every domain
Enhancements:
- After one year of constant development this is the new generation of yawiki. Everything has changed so it is impossible to keep a changelog.

TipiWiki project is a small and clean PHP wiki.

TipiWiki is a small and simple Wiki which favors valid XHTML and provides only basic functions.

It does not have extended functions like document versions or user registration.

It features valid XHTML 1.0, image links, basic Wiki functions (backlinks, WikiWords, bold, italic, etc.), and is highly customizable.

CGI::Wiki is a toolkit for building Wikis.

Helps you develop Wikis quickly by taking care of the boring bits for you. You will still need to write some code - this isnt an instant Wiki.

SYNOPSIS

# Set up a wiki object with an SQLite storage backend, and an
# inverted index/DB_File search backend. This store/search
# combination can be used on systems with no access to an actual
# database server.

my $store = CGI::Wiki::Store::SQLite->new(
dbname => "/home/wiki/store.db" );
my $indexdb = Search::InvertedIndex::DB::DB_File_SplitHash->new(
-map_name => "/home/wiki/indexes.db",
-lock_mode => "EX" );
my $search = CGI::Wiki::Search::SII->new(
indexdb => $indexdb );

my $wiki = CGI::Wiki->new( store => $store,
search => $search );

# Do all the CGI stuff.
my $q = CGI->new;
my $action = $q->param("action");
my $node = $q->param("node");

if ($action eq display) {
my $raw = $wiki->retrieve_node($node);
my $cooked = $wiki->format($raw);
print_page(node => $node,
content => $cooked);
} elsif ($action eq preview) {
my $submitted_content = $q->param("content");
my $preview_html = $wiki->format($submitted_content);
print_editform(node => $node,
content => $submitted_content,
preview => $preview_html);
} elsif ($action eq commit) {
my $submitted_content = $q->param("content");
my $cksum = $q->param("checksum");
my $written = $wiki->write_node($node, $submitted_content, $cksum);
if ($written) {
print_success($node);
} else {
handle_conflict($node, $submitted_content);
}
}

Cloud Wiki is a wiki engine written in Python and backed by Sqlite. Cloud Wiki provides user authentication, powerful command line administration facilities, and a concise, efficient Web interface.
Main features:
- Flexible user authentication system. See An Argument Against Anonymous Wikis for an explanation why Cloud Wiki supports user authentication.
- Implementation of C2 Wikis fundamental Wiki Principles
- Extremely fast SQLite database used for node storage, caching generated content html, content changes and dependency information.
- Long running web server process, instead of a slow loading CGI. Designed to run well behind a reverse proxy.
- Minimalist markup language designed with an emphasis on having just enough features to be useful, but not so many that new users are intimidated. All linking is done with brace-enclosed free links, for example.
- Modular user authentication system.
- Powerful command line node and server manipulation tools for easy administration.
- An interface to view change/replacements to a node in the past three days.
- Added Nodes gateway to list all nodes added to the wiki in the past three days.
- Changed Nodes gateway to list all nodes changed on the wiki in the past three days.
- Generated content is automatically valid, strict XHTML 1.0.
- Wikis may be exported to static HTML files; our Sourceforge website is produced this way from our test wiki.

ScrumWiki is a Wiki implementation for the Scrum project management tool.

ScrumWiki is a Wiki for Scrum.

It features all the regular features of a UseMod Wiki, plus functionality to help with managing a software development project in Scrum.

It features Sprint and Product backlogs, task assignment, and burndown charts to track progress.

JAMWiki is a Java-based Wiki engine.
JAMWiki features Java servlet 2.3 and JDK 1.4 compatibility, feature parity with MediaWiki, quick and easy setup, and support for running either with or without an external database.
Enhancements:
- This is a minor release that includes some new features as well as bugfixes.
- Notable changes made during this release include updates to the wiki syntax parser, an upgrade to the Spring Framework version 2.0.4, an upgrade to Lucene Search Engine version 2.1, and a new Special:Listusers page to provide a list of all registered wiki users.

ERFAN WIKI is powerful wiki engine without database supporting smart search, smart backup, wikipedia syntax, template, nice printable version, language and multiuser. Plus an easy and secure installer.
Main features:
- Multi Language
- Template Support ( full CSS )
- WikiPedia Syntax Support
- Auto Thumbnail Generator
- Smart Search
- Smart Backup
- Printable Output
- User Management
- Database Free
- Easy Installer