Q:

Make screen shooter in bash

I have to make script similar to Screen Shooter.  Unfortunately I am green in this topic.  In connection with this I would like to ask if it is possible to write such a script?  I know ScreenShots are possible, but can they be handled? 
Regards

A:

Example, screenshot script :
#! /bin/sh
import screen$RANDOM.jpg;
exit 0;

The script will display a cross-hair for selecting "screenshot size".  
import is an imagemagick command : sudo apt install imagemagick
http://packages.ubuntu.com/xenial-updates/imagemagick

