It’s not easy to put up a list of “best” applications which do something, however there are some highlights in each category which really deserve to be mentioned. In this article I will overview 20 KDE applications which I believe are best in their niche, one application from each important category, in no particular order.
htop - Undoubtedly the most famous of the top-like tools. It implements some extra options to the "top" command, like colors, ability to scroll horizontally and vertically, and a better interaction with the processes listed.
nethogs - network information, but instead of displaying the traffic by protocol, nethogs shows the bandwidth usage by process. Very interesting.
Sometimes it’s hard to guess what is eating up our bandwidth the most - on a home computer with an xDSL connection, for example. We can run a lot of programs simultaneously while they can eat as much bandwidth as they want independently of their CPU usage.