$ sudo apt-get update
$ sudo apt-get install ksysguardd 

ksysguardd is installed in your system.

Make ensure the ksysguardd package were installed using the commands given below,

$ sudo dpkg-query -l | grep ksysguardd *

You will get with ksysguardd package name, version, architecture and description in a table

ksysguardd package basic information: