How can you see all running processes in Linux with a single line command?
One of the most basic tasks when working with Linux is to be able to see what processes are running on the system. This can be useful for troubleshooting, monitoring performance, or simply getting an overview of what's going on.
There are a few different ways to view running processes in Linux, but one of the most convenient is to use the ps command. The ps command provides a snapshot of the current state of all processes running on the system.
To see all running processes, simply type the following command into a terminal window:
ps aux
This command will output a list of all processes, along with information such as the process ID, the user who owns the process, the CPU usage, and the memory usage.
Here are some additional options that you can use with the ps command to customize the output:
-A: Show all processes, including those that are not attached to a terminal.-e: Show all processes, including those that are in the "zombie" state.-f: Show a full listing of all processes, including the command line arguments.-l: Show a long listing of all processes, including the start time and the resource usage.
FAQs
- What is the difference between a process and a program? A process is an instance of a program that is running on the system.
- What is the PID of a process? The PID is a unique identifier that is assigned to each process when it is created.
- What is the CPU usage of a process? The CPU usage is the amount of time that the process is spending using the CPU.
- What is the memory usage of a process? The memory usage is the amount of memory that the process is using.
- How can I kill a process?
You can kill a process using the
killcommand.
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