Capture the screen, a window, or a user-defined area and save the image to a file. More information: https://manned.org/gnome-screenshot.
~/Pictures:gnome-screenshot
gnome-screenshot {{[-f|--file]}} {{path/to/file}}
gnome-screenshot {{[-c|--clipboard]}}
gnome-screenshot {{[-d|--delay]}} {{5}}
gnome-screenshot {{[-i|--interactive]}}
gnome-screenshot {{[-w|--window]}} {{[-f|--file]}} {{path/to/file}}
gnome-screenshot {{[-d|--delay]}} {{10}} {{[-c|--clipboard]}}
gnome-screenshot --version