Documentation of the TWiki Implementation

(1) Login Username vs. Wiki Username
(2) Wiki Variables
(3) Notification of Changes by Email
(4) TWiki Category Table
(5) Implementation Notes
(6) Installation Notes

(1) Login Username vs. Wiki Username

TWiki manages internally two usernames: Login username and Wiki username.

Login username: When you login to the Intranet you use your login username, e.g. thoeny. TWiki uses this name internally to log who changed topics.

Wiki username: Is your name in WikiNotation, e.g. PeterThoeny. When you create your own home page topic, you should use your WikiName for the topic name. Like that, your name will be linked automatically where ever it is used. Please create your home page in TWiki.Main, not any other TWiki web.

Note: When you write a WikiName of a user (your own or somebody else's) be sure to specify the Main web in front of the Wiki user name, e.g. write it as Main.wikiUsername. This assures that the name will be linked automatically to the TWiki.Main web, even if the text is written in a different Wiki web.

TWiki can map the Intranet username to the Wiki username automatically, provided that the Login username and Wiki username pair has been entered in the TWikiUsers topic.

(2) Wiki Variables

TWiki Variables

Text strings expanded on the fly to display data or system info

Overview

TWikiVariables are text strings - %VARIABLE% - that expand into content whenever a page is opened. Variables are replaced by their actual values: stored data, or system info (like the date, or the current user). There are predefined variables, and Preference variables that you set. You can also define custom variables, with new names and values.

Predefined Variables

Most predefined variables return values that were either defined when TWiki was installed, or taken from server info (like current username, or date and time). Many of the variables let you control how the formatted results appear.

netfrag.org expands the following variables (enclosed in % percent signs):

Variable: Expanded to:

%WIKIHOMEURL% The base script URL of netfrag.org, is the link of the Home icon in the upper left corner, is http://TWiki.org/

%SCRIPTURL% The script URL of netfrag.org, is https://netfrag.org/twiki/bin

%SCRIPTURLPATH% The path of the script URL of netfrag.org, is /twiki/bin

%SCRIPTSUFFIX% The script suffix, ex: .pl, .cgi is

%PUBURL% The public URL of TWiki, is https://netfrag.org/twiki/pub

%PUBURLPATH% The path of the public URL of netfrag.org, is /twiki/pub

%ATTACHURL% The attachment URL of the current topic, is https://netfrag.org/twiki/pub/TWiki/TWikiVariables
Example: If you attach a file you can refer to it as %ATTACHURL%/image.gif

%ATTACHURLPATH% The path of the attachment URL of the current topic, is /twiki/pub/TWiki/TWikiVariables

%URLPARAM{"name"}% Returns the value of a URL parameter. Ex: %URLPARAM{"skin"}% returns print for a .../view/TWiki/TWikiVariables?skin=print URL. Is

%WIKITOOLNAME% Name of wiki tool, is netfrag.org

%WIKIVERSION% Wiki tool version is 04 Sep 2004 $Rev: 1742 $

%USERNAME% Your login username is guest

%WIKINAME% Your Wiki username. Same as %USERNAME% if not defined in the TWikiUsers topic. Is TWikiGuest

%WIKIUSERNAME% Your %WIKINAME% including the Main web name. Usefull for signatures. Is Main.TWikiGuest

%MAINWEB% The Main web containing TWikiUsers, OfficeLocations^? and TWikiGroups^?. Is Main

%TWIKIWEB% The web containing all documentation and configuration of netfrag.org is TWiki

%WEB% The current web is TWiki

%BASEWEB% The web name where the includes started, e.g. the web of the first topic of nested includes. Same as %WEB% in case there is no include.

%INCLUDINGWEB% The web name of the topic that includes the current topic. Same as %WEB% in case there is no include.

%HOMETOPIC% The home topic in each web. Is Home^?

%NOTIFYTOPIC% The notify topic in each web. Is WebNotify

%WIKIUSERSTOPIC% The index topic of all registered users. Is TWikiUsers

%WIKIPREFSTOPIC% The web preferences topic. Is TWikiPreferences

%WEBPREFSTOPIC% The web preferences topic. Is WebPreferences

%STATISTICSTOPIC% The web statistics topic. Is WebStatistics

%TOPIC% The current topic name, is TWikiVariables

%BASETOPIC% The name of the topic where the includes started, e.g. the first topic of nested includes. Same as %TOPIC% in case there is no include.

%INCLUDINGTOPIC% The name of the topic that includes the current topic. Same as %TOPIC% in case there is no include.

%SPACEDTOPIC% The current topic name with added spaces, for regular expression search of Ref-By, is TWiki%20*Variables

%TOPICLIST{"format"}%

Topic index of a web. The "format" defines the format of one topic item. It may include variables: The $name variable gets expanded to the topic name; the $web variable gets expanded to the name of the web. Parameters are format, separator and web:

Parameter:	Description:	Default:
`"format"`	Format of one line, may include `$name` and `$web` variables	`"$name"`
`format="format"`	(Alternative to above)	`"$name"`
`separator=", "`	line separator	`"\n"` (new line)
`web="Name"`	Name of web	Current web

Examples:
%TOPICLIST{" * $web.$name"}% creates a bullet list of all topics.
%TOPICLIST{separator=", "}% creates a comma separated list of all topics.
%TOPICLIST{" <option>$name</option>"}% creates an option list (for drop down menus).

%WEBLIST{"format"}%

Web index, e.g. list of all webs. Hidden webs are excluded, e.g. webs with a NOSEARCHALL=on preference variable. The "format" defines the format of one web item. The $name variable gets expanded to the name of the web, $qname gets expanded to double quoted name, $marker to marker where web matches selection. Parameters are format, separator and web:

Parameter:	Description:	Default:
`"format"`	Format of one line, may include `$name` variable	`"$name"`
`format="format"`	(Alternative to above)	`"$name"`
`separator=", "`	line separator	`"\n"` (new line)
`webs="public"`	comma sep list of Web, public expands to all non-hidden	`"public"`
`marker="selected"`	Text for `$marker` where item matches `selection`, otherwise equals `""`	`"selected"`
`selection="%WEB%"`	Current value to be selected in list	`section="%WEB%"`

Examples:
%WEBLIST{" * [[$name.Home]]"}% creates a bullet list of all webs.
%WEBLIST{"" webs="Trash,public" selection="TWiki" separator=" "}% Dropdown of all public Webs + Trash Web, current Web highlighted.

%GMTIME% GM time, is 24 Nov 2024 - 16:02

%GMTIME{"format"}%

Formatted GM time based on time variables.

Variable:	Unit:	Example
$seconds	seconds	59
$minutes	minutes	59
$hours	hours	23
$day	day of month	31
$month	month in ISO format	Dec
$mo	2 digit month	12
$year	4 digit year	1999
$ye	2 digit year	99

Variables can be shortened to 3 characters. Example:
%GMTIME{"$day $month, $year - $hour:$min:$sec"}% is
24 Nov, 2024 - 16:02:24

%SERVERTIME% Server time, is 24 Nov 2024 - 17:02

%SERVERTIME{"format"}% Formatted server time.
Example: %SERVERTIME{"$hou:$min"}% is 17:02

%HTTP_HOST% HTTP_HOST environment variable, is netfrag.org

%REMOTE_ADDR% REMOTE_ADDR environment variable, is 18.188.205.95

%REMOTE_PORT% REMOTE_PORT environment variable, is 63136

%REMOTE_USER% REMOTE_USER environment variable, is

%INCLUDE{"page" ...}%

Server side include to IncludeTopicsAndWebPages. Parameters are page name, and an optional pattern="(reg-exp)". The page name is:

`"SomeTopic"`	The name of a topic located in the current web, i.e. `%INCLUDE{"WebNotify"}%`
`"Web.Topic"`	A topic in another web, i.e. `%INCLUDE{"TWiki.TWikiWebsTable"}%`
`"http://..."`	A full qualified URL, i.e. `%INCLUDE{"http://twiki.org/"}%`

%STARTINCLUDE% If present in included topic, start to include text from this location up to the end, or up to the location of the %STOPINCLUDE% variable. A normal view of the topic shows everyting exept the %STARTINCLUDE% variable itself.

%STOPINCLUDE% If present in included topic, stop to include text at this location and ignore the remaining text. A normal view of the topic shows everyting exept the %STOPINCLUDE% variable itself.

%TOC% Table of Contents of current topic.

%TOC{"SomeTopic" ...}%

Table of Contents. Shows a TOC that is generated automatically based on headings of a topic. Headings in WikiSyntax ("---++ text") and HTML ("<h2>text<h2>") are taken into account. (But not "<H2>text</H2>", which can be used to exclude a heading from the TOC.) Parameters are topic name, web and depth:

Parameter:	Description:	Default:
`"TopicName"`	topic name	Current topic
`web="Name"`	Name of web	Current web
`depth="2"`	Limit depth of headings shown in TOC	6

Examples: %TOC{depth="2"}%, %TOC{"TWikiDocumentation" web="TWiki"}%

%SEARCH{"text" ...}%

Inline search, shows a search result embedded in a topic. Parameters are the search term, web, scope, order and many more: [1]

Parameter:	Description:	Default:
`"text"`	Search term. (Is a regular expression or literal, depending on the `regex` parameter)	required
`search="text"`	(Alternative to above)	N/A
`web="Name"` `web="Main Know"` `web="all"`	Wiki web to search: A web, a list of webs separated by whitespace, or `all` webs. [2]	Current web
`scope="topic"` `scope="text"`	Search topic name (title) or in the text (body) of the topic	Topic text (body)
`order="topic"` `order="modified"` `order="editby"`	Sort the results of search by the topic names, last modified time, or last editor	Sort by topic name
`limit="all"` `limit="16"`	Limit the number of results returned	All results
`regex="on"`	RegularExpression search	Literal search
`reverse="on"`	Reverse the direction of the search	Ascending search
`casesensitive="on"`	Case sensitive search	Ignore case
`nosummary="on"`	Show topic title only	Show topic summary
`bookview="on"`	BookView search, e.g. show complete topic text	Show topic summary
`nosearch="on"`	Suppress search string	Show search string
`noheader="on"`	Suppress search header Topics: Changed: By:	Show search header
`nototal="on"`	Do not show number of topics found	Show number
`format="..."`	Flexible custom result formatting: see FormattedSearch for usage	Results in table

Example: %SEARCH{"wiki" web="Main" scope="topic"}%

%METASEARCH{...}%

Special search of meta data

Parameter:	Description:	Default:
`type="topicmoved"`	What sort of search is required? `"topicmoved"` if search for a topic that may have been moved `"parent"` if searcing for topics that have a specific parent i.e. its children	required
`web="%WEB%"`	Wiki web to search: A web, a list of webs separated by whitespace, or `all` webs.	required
`topic="%TOPIC%"`	The topic the search relates to	required
`title="Title"`	Text the is pre-pended to any search results	required

Example: %METASEARCH{type="topicmoved" web="%WEB%" topic="%TOPIC%" title="This topic used to exist and was moved to: "}%, you may want to use this in WebTopicViewTemplate and WebTopicNonWikiTemplate
%METASEARCH{type="parent" web="%WEB%" topic="%TOPIC%" title="Children: "}%

%VAR{"NAME" web="Web"}% Get a preference value from a web other then the current one. Example: To get %WEBBGCOLOR% of the Main web write %VAR{"WEBBGCOLOR" web="Main"}%, is #444444

[1] Note: The search form uses identical names for input fields.
[2] Note: A web can be excluded from a web="all" search if you define a NOSEARCHALL=on variable in its WebPreferences.

Preferences Variables

Additional variables are defined in the preferences ( site-level ( SL ) in TWikiPreferences, web-level ( WL ) in WebPreferences of each web, and user level ( UL ) preferences in individual user topics):

Variable:	Level:	What:
`%WIKIWEBMASTER%`	SL	Webmaster email address (sender of email notifications) , is webmaster@netfrag.org
`%WIKIWEBLIST%`	SL	List of netfrag.org webs (in upper right corner of topics)
`%WEBTOPICLIST%`	WL	Common links of web (second line of topics)
`%WEBCOPYRIGHT%`	SL , WL	Copyright notice (bottom right corner of topics)
`%WEBBGCOLOR%`	WL	Background color of web
`%NOSEARCHALL%`	WL	Exclude web from a `web="all"` search (set variable to `on` for hidden webs)
`%NEWTOPICBGCOLOR%`	SL , UL	Background color of non existing topic. ( UL needs authentication for topic views )
`%NEWTOPICFONTCOLOR%`	SL , UL	Font color of non existing topic. ( UL needs authentication for topic views )
`%EDITBOXWIDTH%`	SL , UL	Horizontal size of edit box, is `100`
`%EDITBOXHEIGHT%`	SL , UL	Vertical size of edit box, is `20`
`%RELEASEEDITLOCKCHECKBOX%`	SL , UL	Default state of the "Release edit lock" (UnlockTopic) check box in preview. Checkbox is initially checked if `Set RELEASEEDITLOCKCHECKBOX = checked="checked"`, or unchecked if empty. If checked, make sure to click on Edit to do more changes; do not go back in your browser to the edit page, or you risk that someone else will edit the topic at the same time! Value is: `checked`
`%DONTNOTIFYCHECKBOX%`	SL , UL	Default state of the "Minor Changes, Don't Notify" (DontNotify) check box in preview. Check box is initially checked if `Set DONTNOTIFYCHECKBOX = checked="checked"`, or unchecked if empty. Value is: `checked`
`%ATTACHLINKBOX%`	SL , UL	Default state of the link check box in the attach file page. Check box is initially checked if value is set to `CHECKED` , unchecked if empty. If checked, a link is created to the attached file at the end of the topic. Value is:
`%HTTP_EQUIV_ON_VIEW%`	SL	http-equiv meta tags for view, rdiff, attach, search* scripts.
`%HTTP_EQUIV_ON_EDIT%`	SL , UL	http-equiv meta tags for edit script.
`%HTTP_EQUIV_ON_PREVIEW%`	SL , UL	http-equiv meta tags for preview script.
`%DENYWEBCHANGE%`	WL	List of users and groups who are not allowed to change topics in the netfrag.org web. (More in TWikiAccessControl)
`%ALLOWWEBCHANGE%`	WL	List of users and groups who are allowed to change topics in the netfrag.org web. (More in TWikiAccessControl)
`%DENYTOPICCHANGE%`	*(any topic)*	List of users and groups who are not allowed to change the current topic. (More in TWikiAccessControl)
`%ALLOWTOPICCHANGE%`	*(any topic)*	List of users and groups who are allowed to change the current topic. (More in TWikiAccessControl)
`%DENYWEBRENAME%`	WL	List of users and groups who are not allowed to rename topics in the netfrag.org web. (More in TWikiAccessControl)
`%ALLOWWEBRENAME%`	WL	List of users and groups who are allowed to rename topics in the netfrag.org web. (More in TWikiAccessControl)
`%DENYTOPICRENAME%`	*(any topic)*	List of users and groups who are not allowed to rename the current topic. (More in TWikiAccessControl)
`%ALLOWTOPICRENAME%`	*(any topic)*	List of users and groups who are allowed to rename the current topic. (More in TWikiAccessControl)
`%FINALPREFERENCES%`	SL , WL	List of preferences that are not allowed to be overridden by next level preferences

Setting Preferences

The syntax for Preferences variables is the same anywhere in TWiki. In Edit mode, from the start of a new line:
[6 spaces] * [space] Set [space] VARIABLENAME [space] = [value]
Example:
- Set VARIABLENAME = value

Creating Custom Variables

You can add your own preference variables for an entire site, a single web, or a single topic, using the standard syntax. Whatever you include in your variable will be expanded on display, and treated exactly as if it had been written out. So you can place formatted text, page links, image paths.

Example: Create a custom logo variable

To place a logo anywhere in a web by typing %MYLOGO%, simply define the variable on the web's WebPreferences page. You also have to upload logo.gif - this can be done by attaching a file to LogoTopic (any topic name you choose):

Set MYLOGO = %PUBURL%/%MAINWEB%/LogoTopic/logo.gif

-- PeterThoeny - 13 Sep 2001
-- MikeMannix - 30 Nov 2001

(3) Notification of Changes by Email

Each TWiki web does an automatic email notification of recent changes. Users can subscribe / unsubscribe themselves in WebNotify of each TWiki web. The Perl script mailnotify is called by a deamon once every 60 minutes. For each Twiki web mailnotify is sending an automated email to subscribed users in case some topics changed within these 60 minutes.

Implementation note: Edit the cron table so that mailnotify is called every 60 minutes. Please consult man crontab of how to modify the table that schedules program execution at certain intervals. Example:

% crontab -e
15,45 * * * * (cd ~twiki/public_html/bin; ./mailnotify)

The above line will call mailnotify at 15 minutes and 45 minutes passed every hour.

(4) TWiki Category Table

It is possible to add a category table to a TWiki web. This permits storing and searching for more structured information. Editing a topic shows a HTML form with the usual text area and a table with selectors, checkboxes, radio buttons and text fields. The category table is shown at the end of a topic. The format of the category table can be defined per TWiki web.

If you want to use a Category Table in a TWiki web you need to have the following three files in the twiki/templates/{Yourweb} directory:

twikicatitems.tmpl : Defines the items in the table
twikicatedit.tmpl : Defines the look of the table when editing a topic
twikicatview.tmpl : Defines the look of the table when viewing a topic

Format of category definition template twikicatitems.tmpl

Valid lines:

select|{name}|{selSize}|{val1}|{val2}|{val3}...
checkbox|{name}|{checkFlag}|{itemsPerLine}|{val1}|{val2}|{val3}...
radio|{name}|{itemsPerLine}|{val1}|{val2}|{val3}...
text|{name}|{charSize}
# comments start with a # character

Explanation:

  {name}             name of tag
  {selSize}          vertical size of SELECT tag
  {val1}|{val2}...   values
  {checkFlag}        set to true for [Set] [Clear] buttons, else set to false
  {itemsPerLine}     input items per line before wrap around, 0 if no wrap around
  {charSize}         number of characters for text fields

Remark: Line radio|UseCategory|0|Yes|No has a special meaning. If present, it is possible to choose in "edit" if the category table is included in the topic or not

Example file:

radio|UseCategory|0|Yes|No, delete this category table
select|TopicClassification|1|Select one...|NoDisclosure|PublicSupported|PublicFAQ
checkbox|OperatingSystem|true|5|OsSolaris|OsSunOS|OsHPUX|OsWin
text|OsVersion|16

Format of twikicatedit.tmpl and twikicatview.tmpl

Use the example below and customize if needed. twikicatedit.tmpl and twikicatview.tmpl can be identical, but they do not have to be.

Attention:  is needed at the beginning and end as markers. Do not delete them!

Example:

<!--TWikiCat--> <h4> TWikiCategory </h4>
<table border="2" cellspacing="1" cellpadding="1">
%REPEAT%<tr>
<td valign="top" align="right"> %CATNAME%:  <br>%CATMODIFIER%</td><td>  %CATVALUE% </td>
</tr>%REPEAT%
</table><!--TWikiCat-->

Above template files will result in the following category table when viewing a topic:

TWikiCategory

TopicClassification:	PublicFAQ
OperatingSystem:	OsSolaris
OsVersion:	2.5

Above template files will result in the following table when editing a topic:

Note: It is possible to force the values of a category table when creating a new topic. This is useful to create new topics using a form for the topic name. The default values of the category table can be specified as hidden fields if needed, i.e. <input type="hidden" name="someCategory" value="someValue">

Example (edit this page to see the source) :

New PublicFAQ^? topic:

(5) Implementation Notes

Platform

TWiki is written in PERL 5, but it uses also many shell command. The current implementation runs only on a Unix machine. RCS for revision control must be installed on the system.

Directories

Directory:	Used for:
twiki/bin	TWiki PERL scripts
twiki/pub	Public files (FileAttachments, images)
twiki/data	source text
twiki/templates	HTML templates, used by TWiki scripts

Files in twiki/bin

File:	Used for:
.htaccess.txt	Authentication. Rename to .htaccess and customize if used
attach	Script that shows the attach file page (FileAttachment)
changes	Script that shows recent changes
delete	(not used yet)
edit	Script to edit a topic
mailnotify	Script called by cron job to notify users of changes
oops	Script that shows a OK or oops dialog
preview	Script to preview topic after edit
rdiff	Script to see differences of topics
register	Script to register new users
save	Script that saves a topic, called by preview
search	Script that displays search results
upload	Script that does file upload (FileAttachment)
view	Script to view a topic ( the script )
viewfile	Script to view an file attachment
wiki.pm	main TWiki library
wikicfg.pm	for initialization and configuration, used by wiki.pm

(6) Installation Notes

These installation steps use Apache web server on Linux as an example. TWiki should run on other web servers and Unix systems as well.

Note: These installation notes assume user nobody for all files manupulated by the cgi scripts (executed by the web server), and user twiki for all other files. You need to replace user nobody with an other user in case the web server executes the script with a different user ( default for Debian is www-data ). Also, you can substitute user twiki with your own user name.

Request the TWiki distribution (in Unix ZIP format) from http://www.mindspring.net/~peterthoeny/twiki/index.html .
Create directory /home/httpd/twiki and unzip the TWiki distribution to this directory.
The twiki/bin directory of TWiki must be set as a cgi-bin directory. Add /home/httpd/twiki/bin to /etc/httpd/conf/access.conf with only ExecCGI option.
The twiki/pub directory of TWiki must be set so that it is visible as a URL. Add /home/httpd/twiki/pub to /etc/httpd/conf/access.conf with normal access options (copy from /home/httpd/html).
Now add Alias for /twiki/pub and ScriptAlias for /twiki/bin to /etc/httpd/conf/srm-conf .
Restart Apache by /etc/rc.d/rc5.d/S85httpd restart .
Test if the twiki/bin directory is cgi-enabled:
- Enter the URL of that directory into your browser ( http://your.domain.com/twiki/bin ). It is not set correctly as cgi-bin in case you get something like "Index of /twiki/bin" . It is OK if you get a message like "Forbidden. You don't have permission to access /twiki/bin/ on this server."
- Execute the testenv script from your browser ( http://your.domain.com/twiki/bin/testenv ). It should show a table of all CGI environment variables.
Make sure PERL and the PERL CGI library is installed on your system. Default location of PERL executable is /usr/bin/perl . In case PERL is installed in a different location, the first line of all perl scripts in the twiki/bin directory need to be changed (alternatively you can create a symbolic link from /usr/bin/perl ).
To be able to edit the perl scripts and .tmpl files it is necessary to chown and chgrp -R twiki so all the files have the owner you want.
The scripts execute as nobody . Set the file permission of all Perl scripts in the twiki/bin directory as executable to -rw-r-xr-x .
Set the file permission of all files below twiki/data to 666 ( -rw-rw-rw- ).
Set the file permission of the twiki/data directory and all its subdirectories to 777 ( drwxrwxrwx ).
Set the file permission of the twiki/pub directory to 777 ( drwxrwxrwx ).
Edit the file twiki/bin/wikicfg.pm and set the variables at the beginning of the file to your needs.
Make sure RCS is installed. In case RCS is not in the path environment variable, add it to path . Alternatively, add the full path name to the rcs, ci, co, rlog, rcsdiff commands in the variables of twiki/bin/wikicfg.pm .
Point your browser at http://your.domain.com/twiki/bin/view and start wiki-ing away!
Note in case cgi user is not nobody : The *,v RCS repository files delivered with the installation package are locked by user nobody . In case the user is different (e.g. www-data ), it is not possible to check in files, this has the effect that the topic version number does not increase when saving a topic. In this case you need to unlock all repository files and lock them as user www-data , or simply delete all the repository files.
Security issue: Directories twiki/data , twiki/templates and all its subdirectories should be set so that they are not visible as a URL. (Alternatively, move the directries to a place where they are not visible, and change the variables in twiki/bin/wikicfg.pm accordingly)

Optional: You can add new rendering rules or new %variables%. To insure an easy upgrade of TWiki it is recommended to do this customization in twiki/bin/wikicfg.pm , not twiki/bin/wiki.pm .

Optional: If you are on a public server and you would like to authenticate users you need to rename file .htaccess.txt in the twiki/bin directory to .htaccess and change it to your needs. For details consult the HTTP server documentation (for Apache server: [1], [2], [3]). Note: In case .htaccess does not have any effect you need to enable it: Add "AllowOverride All" to the Directory section of access.conf for your twiki/bin directory.

Optional: You can automatically generate usage statistics for all webs. To enable this:
- Make sure variable $doLogTopicView, $doLogTopicSave and $doLogTopicUpload in wikicfg.pm are set. This will generate log entries in file twiki/data/log<date>.txt .
- Topic WebStatistics must be present in all webs where you want to have statistics. You can use the topic in the Main web as a template.
- Call the twiki/bin/statistics script from a cron job, once a day is recommended. This will update the WebStatistics topics in all webs.
- Attention: The script must run as the same user as the CGI scripts are running, which is user nobody on most systems. Example crontab entry:
  0 0 * * * (cd /path/to/TWiki/bin; ./statistics >/dev/null 2>&1)
- There is a workaround in case you can't run the script as user nobody : Run the utility twiki/bin/geturl in your cron job and specify the URL of the twiki/bin/statistics script as a parameter. Example:
  0 0 * * * (cd /path/to/TWiki/bin; ./geturl mydomain.com /urlpath/to/TWiki/bin/statistics >/dev/null 2>&1)
- The twiki/bin/statistics script can also be executed as a CGI script, just enter the URL in your browser. Examples:
  - Update current month for all webs:
    https://netfrag.org/twiki/bin/statistics
  - Update current month for Main web only:
    https://netfrag.org/twiki/bin/statistics/Main
  - Update January 2000 for Main web:
    https://netfrag.org/twiki/bin/statistics/Main?logdate=200001

To create a new web:
- Use a name for the web consisting of characters A..Z , a..z but not in WikiNotation.
- Create a new template directory under twiki/templates .
- Create a new data directory under twiki/data and check the file permission of the directory.
- Copy the files WebHome.txt , WebNotify.txt , WebSearch.txt , WebStatistics.txt , webcolor.inc and weblist.inc from the twiki/data/Main directory to the new data directory, preserving the original files' owner, group and permissions ( on Unix use cp -p ). The data files must be writable by the owner the CGI scripts are running on ( usually nobody ). Hint: You can set permissions of .txt and .txt,v files to -rw-rw-rw- and then edit the topic using your browser, RCS will restore the file permission correctly when saving the topic.
- Change webcolor.inc to a color of your taste. The number represents the unique color for the web (consult an HTML book for colors.) Note: The file must not have a new line, just the number without a return.
- Customize weblist.inc (web specific links on top) if needed.
- Add the new web in twiki/data/wikiwebs.inc (web specific links on top) and twiki/data/wikiwebtable.inc (table of all webs at the end of the WebHome topics).
- In case you need a web specific copyright notice (at the bottom), copy file webcopyright.inc from the twiki/data directory to the new data directory, and customize it.
- If needed, create customized templates in the new templates directory. (Non existing templates are inherited from twiki/templates )
- If you want to use a category table, copy the three files twikicatitems.tmpl , twikicatedit.tmpl and twikicatview.tmpl from the twiki/templates/Know directory to the new templates directory, and customize it. The TWiki Category Table section has more.
- In case you want usage statistics for this web: Copy file WebStatistics.txt from the twiki/data/Main directory to the new data directory. Edit topic WebStatistics and delete old usage entries.

Here are contents of directories with file permissions. Please note that this is for debugging reasons only and does not exactly reflect the distribution:

directory twiki/bin :

drwxr-xr-x   5 twiki    t5            512 Nov 11 02:52 .
drwxr-xr-x   5 twiki    t5            512 Nov  6 02:57 ..
-rw-r--r--   1 twiki    t5            430 Oct 21 18:51 .htaccess
-rw-r-xr-x   1 twiki    t5           3752 Mar 27 02:21 attach
-rw-r-xr-x   1 twiki    t5           2810 Oct 21 18:51 changes
-rw-r-xr-x   1 twiki    t5           1244 Mar 27 02:21 delete
-rw-r-xr-x   1 twiki    t5           2589 Nov  6 03:05 edit
-rwxr--r--   1 twiki    t5           1811 Feb  4 12:15 geturl
-rwxr-xr-x   1 twiki    t5           4614 Oct 21 18:52 mailnotify
-rw-r-xr-x   1 twiki    t5           1353 Oct 23 20:19 oops
-rw-r-xr-x   1 twiki    t5           2043 Nov  6 03:05 preview
-rw-r-xr-x   1 twiki    t5           6249 Aug  3 04:34 register
-rw-r-xr-x   1 twiki    t5           6890 Nov 11 03:06 rdiff
-rw-r-xr-x   1 twiki    t5           1819 Nov  6 03:06 save
-rw-r-xr-x   1 twiki    t5           3174 Oct 21 18:51 search
-rw-r-xr-x   1 twiki    t5           9774 Feb  4 12:26 statistics
-rwxr-xr-x   1 twiki    t5            509 Feb  7 18:55 testenv
-rw-r-xr-x   1 twiki    t5           6696 Mar 27 02:22 upload
-rw-r-xr-x   1 twiki    t5           3878 Nov 11 03:06 view
-rw-r-xr-x   1 twiki    t5           1538 Mar 27 02:22 viewfile
-rw-r-xr-x   1 twiki    t5          16169 Nov  7 01:43 wiki.pm
-rw-r-xr-x   1 twiki    t5           3945 Jun 23 01:24 wikicfg.pm
-rw-r-xr-x   1 twiki    t5           5127 Feb  4 11:37 wikisearch.pm

directory twiki/templates/ :

drwxr-xr-x   6 twiki    t5            512 Nov  4 20:34 .
drwxr-xr-x   5 twiki    t5            512 Nov 11 02:52 ..
drwxr-xr-x   2 twiki    t5            512 Oct 23 20:57 Know
drwxr-xr-x   2 twiki    t5            512 Nov  4 20:35 Main
-rw-r--r--   1 twiki    t5           2232 Mar 27 02:03 attach.tmpl
-rw-r--r--   1 twiki    t5           1200 Mar 27 02:03 attachtable.tmpl
-rw-r--r--   1 twiki    t5           1751 Nov 11 02:41 changes.tmpl
-rw-r--r--   1 twiki    t5           1711 Nov  6 03:01 edit.tmpl
-rw-r--r--   1 twiki    t5            896 Oct 21 18:51 mailnotify.tmpl
-rw-r--r--   1 twiki    t5             25 Oct 21 18:51 notedited.tmpl
-rw-r--r--   1 twiki    t5             21 Oct 21 18:51 notext.tmpl
-rw-r--r--   1 twiki    t5            157 Oct 23 21:05 notwiki.tmpl
-rw-r--r--   1 twiki    t5            218 Oct 23 20:06 noweb.tmpl
-rw-r--r--   1 twiki    t5            279 Oct 23 20:29 oops.tmpl
-rw-r--r--   1 twiki    t5            833 Mar 27 02:03 oopsdel.tmpl
-rw-r--r--   1 twiki    t5           1331 Oct 23 20:29 oopslocked.tmpl
-rw-r--r--   1 twiki    t5           1026 Aug 03 08:21 oopsregexist.tmpl
-rw-r--r--   1 twiki    t5            935 Aug 03 08:23 oopsregpasswd.tmpl
-rw-r--r--   1 twiki    t5            924 Aug 03 08:26 oopsregrequ.tmpl
-rw-r--r--   1 twiki    t5            931 Aug 03 08:29 oopsregwiki.tmpl
-rw-r--r--   1 twiki    t5            868 Mar 27 02:03 oopsupload.tmpl
-rw-r--r--   1 twiki    t5           2010 Nov  6 03:01 preview.tmpl
-rw-r--r--   1 twiki    t5           1501 Nov 12 22:56 rdiff.tmpl
-rw-r--r--   1 twiki    t5            263 Aug  3 02:44 register.tmpl
-rw-r--r--   1 twiki    t5           1548 Oct 23 21:10 search.tmpl
-rw-r--r--   1 twiki    t5           1541 Oct 26 21:07 view.tmpl

directory twiki/templates/Main :

drwxr-xr-x   2 twiki    t5            512 Nov  4 20:35 .
drwxr-xr-x   6 twiki    t5            512 Nov  4 20:34 ..
-rw-r--r--   1 twiki    t5           2328 Nov  6 03:03 edit.tmpl

directory twiki/templates/Know (has a TWiki Category Table) :

drwxr-xr-x   2 twiki    t5            512 Nov  4 20:35 .
drwxr-xr-x   6 twiki    t5            512 Nov  4 20:34 ..
-rw-r--r--   1 twiki    t5            611 Dec  7 20:59 notedited.tmpl
-rw-r--r--   1 twiki    t5            210 Dec 24 23:22 twikicatedit.tmpl
-rw-r--r--   1 twiki    t5           1887 Jan  6 20:54 twikicatitems.tmpl
-rw-r--r--   1 twiki    t5            245 Dec 24 23:27 twikicatview.tmpl

directory twiki/data/ :

drwxrwxrwx   6 twiki    t5            512 Nov 19 01:01 .
drwxr-xr-x   5 twiki    t5            512 Nov 11 02:52 ..
drwxrwxrwx   2 twiki    t5           9216 Nov 13 13:55 Know
drwxrwxrwx   2 twiki    t5           4608 Nov 15 21:42 Main
-rw-r--r--   1 nobody   65535          53 Aug 03 08:31 .htpasswd
-rw-rw-rw-   1 twiki    t5           1091 Nov  6 04:15 debug.txt
-rw-r--r--   1 nobody   65535        4153 Nov 19 01:01 log199810.txt
-rw-r--r--   1 nobody   65535        7189 Nov 19 01:01 log199811.txt
-rw-r--r--   1 twiki    t5           2356 Oct 22 00:56 webcopyright.inc
-rw-r--r--   1 twiki    t5            276 Oct 22 00:28 wikiwebs.inc
-rw-r--r--   1 twiki    t5           1484 Oct 22 01:11 wikiwebtable.inc

part of directory twiki/data/Main :

drwxrwxrwx   2 twiki    t5           4608 Nov 19 00:56 .
drwxrwxrwx   6 twiki    t5            512 Nov 19 01:01 ..
-rw-rw-rw-   1 twiki    t5           5974 Nov 15 21:42 .changes
-rw-rw-rw-   1 twiki    t5              9 Nov 15 23:00 .mailnotify
-rw-r--r--   1 nobody   65535        3991 Jul 22 04:33 FileAttachment.txt
-r--r--r--   1 nobody   65535        4173 Jul 22 04:33 FileAttachment.txt,v
-rw-r--r--   1 nobody   65535        6773 Aug  5 16:18 TWikiRegistration.txt
-r--r--r--   1 nobody   65535        6960 Aug  5 16:18 TWikiRegistration.txt,v
-rw-r--r--   1 nobody   65535        1990 Nov  6 18:25 TWikiUsers.txt
-r--r--r--   1 nobody   65535        3045 Nov  6 18:25 TWikiUsers.txt,v
-rw-r--r--   1 nobody   65535        1181 Oct 29 20:54 WebHome.txt
-r--r--r--   1 nobody   65535        1537 Oct 29 20:54 WebHome.txt,v
-rw-r--r--   1 nobody   65535         454 Oct 21 18:52 WebNotify.txt
-r--r--r--   1 nobody   65535         638 Oct 27 02:45 WebNotify.txt,v
-rw-r--r--   1 nobody   65535        3653 Oct 21 18:52 WebSearch.txt
-r--r--r--   1 nobody   65535        3835 Oct 27 02:45 WebSearch.txt,v
-rw-r--r--   1 nobody   65535        4282 Feb  4 15:08 WebStatistics.txt
-r--r--r--   1 nobody   65535        4471 Feb  4 15:08 WebStatistics.txt,v
-rw-r--r--   1 twiki    t5              7 Oct 21 18:52 webcolor.inc
-rw-r--r--   1 twiki    t5            278 May 20 17:42 webcopyright.inc
-rw-r--r--   1 twiki    t5            402 Oct 26 07:45 weblist.inc

directory twiki/pub/ :

drwxrwxrwx   4 twiki    t5           1024 Mar 27 02:58 .
drwxr-xr-x   4 twiki    t5           1024 Mar 27 02:08 ..
drwxrwxrwx   4 nobody   nobody       1024 Mar 27 03:54 Main
-rw-r--r--   1 twiki    t5           2877 Mar 27 02:27 wikiHome.gif
drwxr-xr-x   2 twiki    t5           1024 Mar 27 03:17 icn

directory twiki/pub/icn/ :

drwxr-xr-x   2 twiki    t5           1024 Mar 27 03:17 .
drwxrwxrwx   4 twiki    t5           1024 Mar 27 02:58 ..
-rw-r--r--   1 twiki    t5            801 Mar 27 03:02 _filetypes.txt
-rw-r--r--   1 twiki    t5            143 Mar 27 03:16 bat.gif
-rw-r--r--   1 twiki    t5            926 Mar 27 03:16 bmp.gif
-rw-r--r--   1 twiki    t5            141 Mar 27 03:16 c.gif
-rw-r--r--   1 twiki    t5            144 Mar 27 03:16 dll.gif
-rw-r--r--   1 twiki    t5            152 Mar 27 03:16 doc.gif
-rw-r--r--   1 twiki    t5            130 Mar 27 03:16 else.gif
-rw-r--r--   1 twiki    t5            876 Mar 27 03:16 exe.gif
-rw-r--r--   1 twiki    t5            147 Mar 27 03:16 fon.gif
-rw-r--r--   1 twiki    t5            142 Mar 27 03:16 h.gif
-rw-r--r--   1 twiki    t5            156 Mar 27 03:16 hlp.gif
-rw-r--r--   1 twiki    t5            186 Mar 27 03:16 html.gif
-rw-r--r--   1 twiki    t5            144 Mar 27 03:16 java.gif
-rw-r--r--   1 twiki    t5            148 Mar 27 03:16 mov.gif
-rw-r--r--   1 twiki    t5            150 Mar 27 03:16 pdf.gif
-rw-r--r--   1 twiki    t5            146 Mar 27 03:16 pl.gif
-rw-r--r--   1 twiki    t5            150 Mar 27 03:16 ppt.gif
-rw-r--r--   1 twiki    t5            148 Mar 27 03:16 ps.gif
-rw-r--r--   1 twiki    t5            148 Mar 27 03:16 py.gif
-rw-r--r--   1 twiki    t5            130 Mar 27 03:17 ram.gif
-rw-r--r--   1 twiki    t5            154 Mar 27 03:17 reg.gif
-rw-r--r--   1 twiki    t5            147 Mar 27 03:17 sh.gif
-rw-r--r--   1 twiki    t5            155 Mar 27 03:17 sniff.gif
-rw-r--r--   1 twiki    t5            149 Mar 27 03:17 ttf.gif
-rw-r--r--   1 twiki    t5            134 Mar 27 03:17 txt.gif
-rw-r--r--   1 twiki    t5            154 Mar 27 03:17 wav.gif
-rw-r--r--   1 twiki    t5            152 Mar 27 03:17 wri.gif
-rw-r--r--   1 twiki    t5            152 Mar 27 03:17 xls.gif
-rw-r--r--   1 twiki    t5            144 Mar 27 03:17 zip.gif

-- PeterThoeny^? - 22 Oct 1998
-- PeterThoeny^? - 18 Nov 1998
-- PeterThoeny^? - 11 Jan 1999
-- PeterThoeny^? - 20 Jan 1999
-- PeterThoeny^? - 06 Mar 1999
-- PeterThoeny^? - 27 Mar 1999
-- PeterThoeny^? - 02 Jun 1999
-- PeterThoeny^? - 14 Jun 1999
-- PeterThoeny^? - 23 Jun 1999
-- PeterThoeny^? - 01 Sep 1999
-- PeterThoeny^? - 29 Sep 1999
-- PeterThoeny^? - 14 Jan 2000
-- PeterThoeny^? - 02 Feb 2000
-- PeterThoeny^? - 04 Feb 2000

TWikiDocumentation (r1.9)

Documentation of the TWiki Implementation

TWiki Variables

Overview

Predefined Variables

Preferences Variables

Setting Preferences

Creating Custom Variables

TWikiCategory

TWikiCategory