How to Re-Index spotlight in OS X

Generally, we re-index spotlight if it doesn't produce the correct result. To force re-indexing spotlight use the following command:
 
In order to change the power-button behaviour, open the Terminal application (located in /Applications/Utilities), then type in the following command, followed by the return key:
 
From OS X 10.9 Mavericks, 10.8 Mountain Lion and 10.7 Lion, the /Library and ~/Library are hidden from the Finder – to show these directories in the GUI, launch Terminal from /Applications/Utilities and run the command below with sudo and enter your admin password when requested:
 

To make visible or display Bangla UNICODE in Joomla 3.3.3

To support UTF-8 or Bangla Unicode in Joomla 3.3.3, make sure to change 'Collation' column from 'latin1_swedish_ci' to 'utf8_unicode_ci' in the following table:
 
To remove the lime-colored question mark, edit this file /plugins/content/hs_highlighter/lib/styles/shThemeDefault.css and add: display: none; in the inside the following code:
 
To remove Facebook comment field from the bottom of the article, edit this file /templates/ja_wall/html/com_content/article/default.php by removing the following code:
 
Since OSX is based on Unix there are a lot of ways to compress files and folders, below are a few options using the command line interface. The default command line application interface in OSX is the Terminal and stored in /Applications/Utilities
 

Remove "Home" title from every single article in JA Wall Template

Menus -> Main Menu -> Home -> Page Display Options -> Show Page Heading -> No
 

Reset forgotten OS X Mavericks 10.9 admin password

The passwords for all accounts on OSX 10.9 Mavericks and OSX 10.8 Mountain Lion including admin and standard users can be reset and changed when booted from the Recovery Partition on OSX.
 

How to add a MySQL password for XAMPP on OSX

By default an installation of XAMPP has no password which is not secure at all.
 
You may not want to see the Powered by Joomla or other copyright information in your Joomla CMS. Though it is strongly encourages to everyone not to remove this.