Which command is commonly used to identify running processes on Linux in real time?

Which command is commonly used to identify running processes on Linux in real time?

• A. ls
• B. grep
• C. top
• D. cd

Answer: (C)

Real-time process monitoring means watching the currently running processes as they change, with the display updating automatically. The command that provides this live, continually updating view of processes, along with resource usage, is top. It shows each process, its CPU and memory usage, and refreshes the list on a loop, so you can see what’s actively running and consuming resources at any moment. It also offers interactive controls to sort by different metrics, send signals to processes, and view system-wide summary information. Other options don’t fit this purpose: one lists files in directories, not processes; another is a text-search tool that would need to be paired with another command to target processes and still wouldn’t provide a live, updating view; and the last changes your current working directory, which has no relation to monitoring processes.

Real-time process monitoring means watching the currently running processes as they change, with the display updating automatically. The command that provides this live, continually updating view of processes, along with resource usage, is top. It shows each process, its CPU and memory usage, and refreshes the list on a loop, so you can see what’s actively running and consuming resources at any moment. It also offers interactive controls to sort by different metrics, send signals to processes, and view system-wide summary information.

Other options don’t fit this purpose: one lists files in directories, not processes; another is a text-search tool that would need to be paired with another command to target processes and still wouldn’t provide a live, updating view; and the last changes your current working directory, which has no relation to monitoring processes.