i.Task

Task is a Linux task viewer that comes with a source code licensed under LGPL. The distribution includes binaries for systems based on GCC3, as well as the source code. Keep in mind that you need to install the external library Lgi to build from the source, but the binary version of Lgi is included in the distribution.

The most recent version comes with some exciting features. Firstly, Task now includes a status bar that displays total CPU%, Mem, and tasks count. Secondly, a copy command has been added that generates a formatted text table with all the task information and totals, which you can export to the clipboard. Thirdly, the previously reported crashing issue when a process exits during the update phase has been fixed.

Additionally, Task now features color coding of tasks which enables you to see which tasks belong to you. Finally, a history tab has been introduced for CPU and memory usage, providing you with valuable insights into the history of your system's resource consumption.

In conclusion, Task is a lightweight task viewer tool for Linux with several helpful features and is available for free.