Screenshot utility. More information: https://github.com/naelstrof/maim.
maim {{path/to/screenshot.png}}
maim --select {{path/to/screenshot.png}}
xclip
):maim --select | xclip -selection clipboard -target image/png
xdotool
):maim --window $(xdotool getactivewindow) {{path/to/screenshot.png}}