Lsof lists open files for running UNIX processes. It is a descendent of ofiles, fstat, and lsof versions 1, 2, and 3.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Linux
- BSD
Usage is described as 'System Activity Monitor for Mac, iPhone, and iPad. Customizable, precise, and lightweight apps to keep an eye on the activity and performance of your devices' and is a system information utility in the os & utilities category. There are more than 50 alternatives to Usage for a variety of platforms, including Linux, Windows, Mac, BSD and Android apps. The best Usage alternative is Process Explorer, which is free. Other great apps like Usage are htop, witr, Glances and Pachtop.
Lsof lists open files for running UNIX processes. It is a descendent of ofiles, fstat, and lsof versions 1, 2, and 3.
psutil is a module providing an interface for retrieving information on all running processes and system utilization (CPU, memory, disks, network, users) in a portable way by using Python, implementing many functionalities offered by command line tools such as: ps, top, df...



This systems administrator, tuner, benchmark tool gives you a huge amount of important performance information in one go. It can output the data in two ways

An advanced interactive monitor for Linux-systems to view the load on system-level and process-level.




Linux process explorer, behaves the same as the windows process explorer from Mark Russinovich.


Python System Monitor (Psymon) is a cross-platform, task and performance monitor.


KillSwitch is an advanced system monitoring tool that is apart of Comodo Cleaning Essentials (CCE) it allows users to identify, monitor and stop potentially unsafe processes that are running on endpoint systems. Uniquely for a product of its type, KillSwitch leverages Comodo'.



px tells you what processes are running on your system and how they are interconnected.


Task Explorer is an advanced Task Manager tool with emphasis on, not just monitoring what applications are running, but on finding out what applications are doing. The UI focuses on expedience and getting real time data of what the processes are doing at any given moment.