procps-ng is described as 'procps is a set of command line and full-screen utilities that provide information out of the pseudo-filesystem most commonly located at /proc. This filesystem provides a simple interface to the kernel data structures' and is an app in the OS & Utilities category. There are three alternatives to procps-ng for Linux and Windows. The best alternative is MSConfig, which is free. Other great apps like procps-ng are procps (Free, Open Source) and PSmisc (Free, Open Source).
procps is the package that has a bunch of small useful utilities that give information about processes using the /proc filesystem. The package includes the programs ps, top, vmstat, w, kill, free, slabtop, and skill.
This PSmisc package is a set of some small useful utilities that use the proc filesystem. We're not about changing the world, but providing the system administrator with some help in common tasks. There is options for using SELinux if you need it and fuser understands IPv6.