I am trying to find a screen capture utility that could offer the above option in Centos 7.
In the old days of Windows, I used to have a small utility called MWSnap that was perfect for this task. These days PickPick also offers such option. However, I have searched high and low and cannot find something for Linux. Do you know of any? If so, I would be grateful to hear about it. Thanks.
[Edited to make the question a bit more clearer:] I am aware of utilities that can capture a window, a screen, or an area on the screen of your choice. No problem there. What I am searching for is the capability of capturing a 'fixed region.'
A fixed region capture is pre-defined and you just place the region on the screen to capture what you want without further editing. Some description is given here for Microsoft Windows' users:
Whilst I am familiar with such utilities in the Windows environment, I am trying to find out an alternative for Linux, and not any distro, but RedHat-based ones such as CentOS, etc. Thanks.