TWiki Variables Quickstart 
TWiki Variables are names that are enclosed in percent signs 
% that are expanded on the fly. Some variables take arguments, such as 
%INCLUDE%. For those variables, the arguments are included in curly braces ({ and }).
|  Variable  |  In brief  |  Full documentation  | 
 %TOC%  |  Automatically generates a table of contents based on headings in a topic - see the top of this page for an example.  |  VarTOC  | 
 %WEB%  |  The current web, is TWiki.  |  VarWEB  | 
 %TOPIC%  |  The current topic name, is TWikiVariablesQuickStart.   |  VarTOPIC  | 
 %ATTACHURL%  |  The attachment URL of the current topic. Example usage: If you attach a file to a topic you can refer to it as %ATTACHURL%/image.gif to show the URL of the file or the image in your text.  |  VarATTACHURL  | 
 %INCLUDE{"SomeTopic"}%  |  Server side include, includes another topic. The current web is the default web. Example: %INCLUDE{"TWiki.SiteMap"}%  |  VarINCLUDE  | 
 %SEARCH{"sushi"}%  |  Inline search showing the search result embedded in a topic. FormattedSearch gives you control over formatting, useful for creating web-based applications.  |  VarSEARCH  | 
TWikiPreferences defines some site-wide variables. Among them are: 
-  Line break: Write 
%BR% to start a new line.
  -  Colored text: Write: 
%RED% Red %ENDCOLOR% and %BLUE% blue %ENDCOLOR% colors to get:  Red  and  blue  colors.
 
 
There are many more variables. To see them all, go to 
TWikiVariables.
Documentation Graphics: There are many graphics available to use in your topics. Use 
%ICON{"help"}%, 
%ICON{"tip"}%, and 
%ICON{"warning"}% to get: 

, 

, and 

, respectively. 
TWikiDocGraphics lists them all.

 To "escape" a variable, prefix it with an exclamation mark. Write: 
!%SOMEVARIABLE% to get: %SOMEVARIABLE%.