How to clear Clipboard on Mac Book Pro

You can't really do it without a Terminal command. However, there's only a single clipboard item at a time, and you can make sure that it's either clear or that there's gibberish there.

Make sure that Finder is selected - either by clicking on an empty space on your desktop or picking any folder/drive/etc that brings up Finder. From the drop-down menu select Edit>Show Clipboard. Then you can do a command-C on something like a single character to clear whatever was there before and verify that the clipboard contents have changed.

Regardless of what keyboard you are using, it is extremely likely to have a key that generate the code for the Macintosh Command key. It may have a different graphic on its (sometimes it is the Windows key) but it is very likely to be there.

Holding down that key while also pressing the C key will produce a command-C or copy shortcut.

You can always select something and choose Copy off the Edit Menu in almost every program.

Oglebay wrote:

You were right!!! I discovered that I can use the shift key in lieu of the command key.

THANKS AGAIN!!

There are equivalents.

https://support.microsoft.com/en-us/help/970299/keyboard-mappings-using-a-pc-key board-on-a-macintosh

However, you don't necessarily need to copy using command-C. You can also use a mouse or keyboard. If you have a mouse with a right button then you can right-click to cut/copy. Or left click while holding down the control key (should work with a Windows keyboard) to get the equivalent.

I don't believe there's any mean to completely blank out the clipboard (save a Unix command entered in a Terminal window), but you can certainly overwrite the single entry and make sure the old one is gone.