Screenshots on OS X

Screenshot of a portion of the screen

 * 1) Press ⌘-⇧-4 (command-shift-4)
 * 2) Make a selection of the screen

Screenshot of a window

 * 1) Press ⌘-⇧-4 (command-shift-4)
 * 2) Press the spacebar
 * 3) Click on the desired window

Screenshot the entire screen

 * 1) Press ⌘-⇧-3 (command-shift-3)

Change the destination folder
By default, screenshot are saved in ~/Desktop/

To change this, run from the terminal:

defaults write com.apple.screencapture location ~/Pictures/ killall SystemUIServer

Screenshot of a portion of the screen

 * 1) Press ⌘-⌃-⇧-4 (command-control-shift-4)
 * 2) Make a selection of the screen

Screenshot of a window

 * 1) Press ⌘-⌃-⇧-4 (command-control-shift-4)
 * 2) Press the spacebar
 * 3) Click on the desired window

Screenshot the entire screen

 * 1) Press ⌘-⌃-⇧-3 (command-control-shift-3)

Timed Screenshots
The Grab Application is able to create timed screenshots.

Grab is located in /Applications/Utilities/Grab.app

Screen Recording
QuickTime Player is able to create screen recordings, select File > New Screen Recording.

QuickTime Player is located in /Applications/QuickTime Player.app