subprocess.pid

• 类型：<integer> | <undefined>

返回子进程的进程标识符 (PID)。如果由于错误导致子进程无法启动，则该值为 undefined，并且会触发 error。

【Returns the process identifier (PID) of the child process. If the child process fails to spawn due to errors, then the value is undefined and error is emitted.】

const { spawn } = require('node:child_process');
const grep = spawn('grep', ['ssh']);

console.log(`Spawned child pid: ${grep.pid}`);
grep.stdin.end();import { spawn } from 'node:child_process';
const grep = spawn('grep', ['ssh']);

console.log(`Spawned child pid: ${grep.pid}`);
grep.stdin.end();拷贝