Mac OS Finder

Finder desktop, HD view

1. How do I get the size of a Folder?

Open a Finder window, select View, Show View Options, or press Command and J. Click the checkbox next to 'Calculate all Sizes' and it will calcuate the size of the folders and display it in the Size column.

2. How do I view properties of files?

You can right click the file, and select Get Info and an information box will appear, it will display the name of the name, its location, size, file association (if any), and permissions.

3. How do I search or locate a file or application?

You can use Spotlight, click on the Magnifying glass at the top right and enter the name of the file, folder, or application and press Enter and it will search for it for you.

4. How do I change the Desktop background?

You can use System Preferences, Desktop and Screen Saver, select Desktop and select a picture or solid colour for your desktop. If you want to use your own pictures, either select Pictures below Folders or click on the plus (+) icon at the bottom to add your own picture folder.

5. How do I use the the Dock?

The Dock contains shortcuts to various applications or folders. To add new icons, open the Applications folder, and drag and drop the icon on to the dock. To remove an icon from the Dock, select the icon and drag it to an empty area of the Desktop to remove it.

6. How do I display hidden items?

You can display hidden items by entering the following command in Terminal:
defaults write AppleShowAllFiles YES
and restart finder by entering this command:
killall Finder.

Alternatively, you can download Tinker tool for Mac OS to change this and other hidden options, that are not in System Preferences.