That's a great question! htop is designed to be highly interactive, allowing you to easily manage and monitor processes.
Based on the current step, after you run htop, you'll see information organized into three main sections:
- Top: Shows CPU and memory usage, along with system uptime.
- Middle: A detailed list of all running programs (processes).
- Bottom: This is where you'll find the primary interactive options.
The bottom section of htop usually displays a row of function keys (F1-F10) that correspond to various actions. While the exact options might vary slightly depending on your htop version, common interactive options you'll find there include:
- F1 Help: Displays a help screen with a list of commands and their descriptions.
- F2 Setup: Opens a menu to configure
htop's display, columns, colors, and other settings. This is where you can customize what information you see. - F3 Search: Allows you to search for processes by name.
- F4 Filter: Lets you filter the displayed processes based on criteria.
- F5 Tree: Toggles between a flat list of processes and a tree view, which shows the parent-child relationships between processes.
- F6 SortBy: Changes the column used to sort the processes (e.g., sort by CPU usage, memory usage, PID, etc.).
- F7 Nice - / F8 Nice +: Adjusts the "niceness" of a selected process. A lower "nice" value means the process gets more CPU time.
- F9 Kill: Sends a signal to terminate a selected process. You'll often be prompted to choose the type of signal (e.g., SIGTERM, SIGKILL).
- F10 Quit: Exits
htop.
Additionally, you can use the arrow keys to navigate through the list of processes to select a specific one.
Important Note: As the step mentions, you can also press q on your keyboard to exit htop when you're finished.
Labby encourages you to try running htop and playing around with these function keys. It's the best way to get a feel for how powerful and interactive it is!
