To edit a [[MediaWiki]] page, click on the "'''Edit this page'''" (or just "'''edit'''") link at one of its edges. This will bring you to a page with a text box containing the ''[[wikitext]]'': the editable source code from which the server produces the webpage. For the special codes, see below.
After adding to or changing the wikitext it is useful to press "Preview", which produces the corresponding webpage in your browser but does not make it publicly available yet (not until you press "Save"). Errors in formatting, links, tables, etc., are often much easier to discover from the rendered page than from the raw wikitext.
If you are not satisfied you can make more changes and preview the page as many times as necessary. Then write a short [[
Help: Edit summary|edit summary]] in the small text field below the edit-box and when finished press "Save". Depending on your system, pressing the "Enter" key while the edit box is not active (i.e., there is no typing cursor in it) may have the same effect as pressing "Save".
You may find it more convenient to copy and paste the text first into your favorite [[en:text editor|text editor]], edit and spell check it there, and then paste it back into your [[en:web browser|web browser]] to preview. This way, you can also keep a local backup copy of the pages you have edited. It also allows you to make changes offline, but before you submit your changes, ''please make sure nobody else has edited the page'' since you saved your local copy (by checking the [[Help:page history|page history]]), otherwise you may accidently revert someone else's edits. If someone ''has'' edited it since you copied the page, you'll have to merge their edits into your new version (you can find their specific edits by using the "[[
Help: diff|diff]]" feature of the page history). These issues are handled automatically by the Mediawiki software if you edit the page online, retrieving and submitting the wikicode in the same text box.
See also [[MediaWiki architecture]].
== Minor edits ==
When editing a page, a [[MediaWiki User's Guide: Logging-in|logged-in]] user has the option of flagging the edit as a "minor edit". This feature is important, because users can choose to ''hide'' minor edits in their view of the [[
MediaWiki User's Guide: The Recent Changes page | Recent Changes page]], to keep the volume of edits down to a manageable level.
When to use this is somewhat a matter of personal preference. The rule of thumb is that an edit of a page that consists of spelling corrections, formatting, and minor rearranging of text should be flagged as a "minor edit". A major edit is basically something that makes the entry worth revisiting for somebody who wants to watch the article rather closely. So any "real" change, even if it is a single word, should be flagged as a "major edit".
In the left column of the table below, you can see what effects are possible. In the right column, you can see how those effects were achieved. In other words, to make text look like it looks in the left column, type it in the format you see in the right column.
You may want to keep this page open in a separate browser window for reference. If you want to try out things without danger of doing any harm, you can do so in the [[Sandbox]].
=== Sections, paragraphs, lists and lines ===
Summarizing the effect of a single newline: no effect in general, but it ends a list item or indented part; thus changing some text into a list item, or indenting it, is more cumbersome if it contains newlines, they have to be removed; see also [[w:Wikipedia:Don't use line breaks]].
=== Links, URLs ===
A link to the page on the same subject in another language or, more generally, to a page on another wiki:
For more info see [[MediaWiki User's Guide: Interwiki linking]].
=== Images ===
=== Character formatting ===
<tr valign="top"><td>'''Greek characters:''' <br/>
α β γ δ ε ζ <br/>
<pre> to suppress interpretation of wiki markup and keep newlines and multiple spaces, and get typewriter font, but interpret character references:'''
'''Use leading space on each line to keep newlines and multiple spaces, and get typewriter font:
'''Show character references:'''
=== HTML Tables ===
[[en:HTML|HTML]] tables can be quite useful as well. For details on how to use them and discussion about when they are appropriate, see [[m:Help:Table]].
Html in wikitext]]
*[[Help:Administration#Page_protection| Protecting pages]]
*[[Help:Starting a new page]]
*[[en:UseModWiki|UseModWiki]] and [[en:Wikipedia:PHP script|Wikipedia:PHP script]].
*[[en:HTML tag|HTML tag]].