How to take a screenshot on your Mac: 4 ways to capture your screen
you may have up to four ways to take a screenshot.
If you have a Mac of any kind, you have three ways to take a screenshot with keyboard shortcuts-
Command-Shift-3
This keyboard shortcut captures a screenshot of your entire screen.
Use this keyboard combo to turn your cursor into a crosshair,
You have a number of other options after hitting Shift-Command-4:
Click on the window you want to take a screenshot of.
Press and hold the space bar (after dragging to highlight an area but before releasing the mouse button or trackpad)