The Xfce4-screenshooter is an application that can be used to take snapshots of your desktop screen.
שרעטל סקרעענשאָט
GNOME סקרעענשאָט איז אַ קליין נוצן וואָס נעמט אַ סקרעענשאָט פון די גאנצע
desktop; the currently focused window; or an area of the screen.
KSnip
Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots.
Flameshot
Powerful yet simple to use screenshot software.