top and htop (live monitoring) in Linux CLI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the top command in Linux?

The top command shows a live, updating list of running processes and system resource usage like CPU and memory.

beginner

How does htop improve on top?

htop provides a colorful, interactive interface with easier navigation and process management using keyboard shortcuts.

intermediate

Which key do you press in htop to kill a selected process?

Press F9 to kill the selected process in htop.

intermediate

How can you sort processes by memory usage in top?

Press M (uppercase) while top is running to sort processes by memory usage.

beginner

What command do you use to install htop on Ubuntu?

Use sudo apt install htop to install htop on Ubuntu.

Which command shows a live list of running processes in Linux?

A cd

B ls

C top

D mkdir

top displays a live updating list of running processes and system resource usage.

What feature does htop provide that top does not?

A Listing files

B Interactive process management

C Changing directories

D Creating files

htop allows interactive process management with keyboard shortcuts.

In top, which key sorts processes by CPU usage?

A P

B M

C K

D Q

Pressing P sorts processes by CPU usage in top.

How do you exit the top command?

A F10

B Ctrl+C

C Esc

D Q

Press Q to quit the top command.

Which command installs htop on Debian-based systems?

A sudo apt install htop

B sudo yum install htop

C sudo pacman -S htop

D sudo dnf install htop

Use sudo apt install htop on Debian/Ubuntu systems.

Explain how to use top to monitor system processes and sort them by memory usage.

Think about the keys you press while top is running.

Describe the advantages of using htop over top for live monitoring.

Focus on usability and features.