How do you list all processes on the command line in Windows?

Is there a command equivalent to 'ps' on Unix that can list all processes on a Windows machine?

Answer

Working with cmd.exe:

tasklist

If you have Powershell:

get-process

Via WMI:

wmic process

(you can query remote machines as well with /node:ComputerOrIP, and there are a LOT more ways to customize this command: link)