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+## Installation on Linux - Step by Step
+
+Here is a step by step procedure for Linux, that should work for other unixy
+operating systems as well:
+
+1. Open a command line window (e.g. using Konsole or XTerm).
+2. If necessary [install Composer][]:
+    ``` sh
+    curl -sS https://getcomposer.org/installer | php
+    sudo mv composer.phar /usr/local/bin/composer
+    ```
+3. Navigate to the root folder of your MediaWiki installation. That's the one
+   with the `LocalSettings.php` file in it.
+4. Open the `composer.local.json` file in an editor and add the Chameleon skin
+   to the `require` section:
+   `require` section:
+   ```
+   "require": {
+       "mediawiki/chameleon-skin": "~1.0"
+   }
+   ```
+   * Remark 1: If you do not have a `composer.local.json` file (MediaWiki <1.25),
+     use `composer.json` instead.
+   
+   * Remark 2: If you do not have a `composer.json` file (MediaWiki <1.23.5),
+     copy `composer.json.example` to `composer.json` first.
+5. To actually install Chameleon run the command
+   `composer update "mediawiki/chameleon-skin"`
+6. If there were no errors, close the command line window.
+7. Open `LocalSettings.php` in an editor (e.g. Kate). Include
+   `$wgDefaultSkin='chameleon';` as the last line. Save the file and close the
+   editor.
+8. Open your wiki in a browser. Chameleon should be installed.
+9. If not, force reload the page to [refresh your browser cache][cache-refresh].
+   (On Firefox or Chrome press Ctrl+F5)
+
+[Install Composer]: https://getcomposer.org/doc/00-intro.md#installation-nix
+[cache-refresh]: http://www.refreshyourcache.com/en/home/