Clipboard Image Save
You take a screenshot to your clipboard but wish you had saved it to a file and its too late? Its not too late here is how you'd go about piping it to a file.
Note the path in the linux alias. Please change for your own system
Linux -
alias saveimgclip='xclip -selection clipboard -t image/png -o > /home/dkendall/Desktop/clipboard.png'
macOS -
Copy the image.
Open Preview.
Press: ⌘+N
A new window will open with your copied image.
On the menu bar, click File > Save, or press ⌘+S, and a Save As sheet will appear.
Windows -