Do you have a MacBook but you do not exactly how to take a screenshot with that. Do not worry as below mentioned are the commands following with which you will get to know that how much it is easy to take a screenshot with your device. The process of taking a screenshot for all versions of Mac OS is same.
1- Have the content entered over the screen of which you want to take the screen shot . Press command-shift-4. Doing this, your cursor will become cross hair.
2- Move your cursor towards the screen’s corner when you want the picture to be start.
3- Click and drag the mouse in order to select the content for the screen shot. A rectangle will appear on the screen in order to define the area. Adjust the rectangle by holding the mouse and then move over to the next step.
4- Move the rectangle if required by clicking over the space bar, the rectangle will follow that movement that.
5- Constrain the selection rectangle if required by clicking shift key. Move the cursor horizontally in order to capture the vertical size.
6- Release all the keys including mouse as well. The screen shot will appear over your screen with the name like picture or number.
7- Double click the screen shot in order to check or inspect its accurateness.
This is all to take a screen shot over the MAC OS. Really a simple process.