Linux
How to take a screenshot of the entire screen
Use the following button to take a screenshot of all the screen
PrtSc
The screenshot will be saved under Pictures folder you can combine it with the button Ctrl to send it to the clipboard without saving it
Ctrl + PrtSc
How to take a screenshot of the active window
In order to take a screenshot of the current window use the following combination of buttons
Alt + PrtSc
The screenshot will be saved under Pictures folder
In order to send it to the clipboard and not save it use the following combination
Ctrl + Alt + PrtSc
How to take a screenshot of a specific area of the screen
You can use this combination of buttons
Shift + PrtSc to capture a screenshot of a specific area of your screen, the file will be saved under Picture folder. to send it to clipboard use the following buttons:
Ctrl + Shift + PrtSc
Third party application
You can use many third party application to take a screenshot on linux like Flameshot,Shutter,Gimp