How do I query the PID of an application process?

You can obtain the information in either of the following ways:

• Method 1: Run shell commands.

  To view information about all running processes, run the hdc shell command to enter the CLI of the device, and then run the ps -ef command.

• Method 2: Call the process related API.

  import { process } from '@kit.ArkTS';
  
  let pid = process.pid;