How to Access the Help Menu in htop?

The htop command-line utility is a powerful, interactive process manager for Linux that allows users to monitor system resources and manage running processes in real time. Navigating its various features efficiently often requires quick access to its built-in documentation. This article explains the specific shortcut key used to open the help menu within htop, details what information you can find there, and highlights alternative ways to access this guidance so you can make the most of this terminal tool.

The Shortcut Key for Help

To access the help menu directly within the htop interface, press the F1 key on your keyboard. Alternatively, if your terminal or keyboard layout makes using function keys difficult, you can press the h key (lowercase) to achieve the exact same result.

What the Help Menu Contains

Once you open the help screen using F1 or h, htop pauses its real-time resource updating to display a comprehensive list of keyboard shortcuts and navigation commands. This menu is crucial for learning how to maximize the utility’s potential. It includes guidance on:

• Navigation: Arrow keys for scrolling through the process list.
• Process Management: Keys to kill a process (F9 or k), change process priority/nice value (F7 and F8), or trace a process (t).
• Display Customization: Shortcuts to filter processes (F4), search for specific terms (F3), or invert the sort order (I).

Alternative Ways to Find Help

If you are not currently running htop but need to review its commands or configuration options, the Linux system provides standard documentation formats. You can view the full manual page by typing man htop in your terminal. This external manual provides a deeper dive into command-line arguments, configuration file setups, and detailed explanations of the metrics displayed in the utility’s header.