What does the 'top' command do in a Linux system?

The 'top' command in a Linux system provides a dynamic, real-time view of currently running processes. This utility is widely used for monitoring system performance and managing processes, as it displays information such as CPU usage, memory usage, and process statuses. It allows users to view the most resource-intensive processes and their performance in real-time, making it an essential tool for system administrators and users who need to keep an eye on system resources and efficiency.

The capability of 'top' to refresh the display periodically ensures that the information is current, allowing for effective monitoring and troubleshooting of system performance. This continuous updating is what distinguishes it from other commands that provide static information about system processes.