Which command is used to view running processes in Linux?

The command to view running processes in Linux encompasses several tools, each with its own strengths, making the option that includes all of them the most comprehensive choice.

The ps command is a fundamental utility that displays currently running processes. It provides a static snapshot of processes at the moment the command is executed. While it is powerful for retrieving specific information about processes, it does not update live.

The top command offers a dynamic, real-time view of processes running on the system. It continuously refreshes the output, allowing users to see which processes are consuming the most resources over time, such as CPU and memory usage. This makes it valuable for monitoring system performance.

The htop command is similar to top, but it is more user-friendly with a colorful, interactive interface. It allows for easy navigation and management of processes, including options to sort, filter, and kill processes directly within the interface.

Choosing "all of the above" acknowledges that there are various commands in Linux for viewing running processes, and each serves a unique purpose. This range of options provides users with flexibility in how they monitor and manage their system’s processes.