process.kill(pid[, signal])

• pid <number> 进程标识

  ¥pid <number> A process ID

• signal <string> | <number> 要发送的信号，可以是字符串或数字。默认值：'SIGTERM'。

  ¥signal <string> | <number> The signal to send, either as a string or number. Default: 'SIGTERM'.

process.kill() 方法将 signal 发送到由 pid 标识的进程。

¥The process.kill() method sends the signal to the process identified by pid.

信号名称是字符串，例如 'SIGINT' 或 'SIGHUP'。有关详细信息，请参阅 信号事件 和 kill(2)。

¥Signal names are strings such as 'SIGINT' or 'SIGHUP'. See Signal Events and kill(2) for more information.

如果目标 pid 不存在，则此方法将抛出错误。作为特殊情况，可以使用信号 0 来测试进程是否存在。如果使用 pid 来杀死进程组，则 Windows 平台将抛出错误。

¥This method will throw an error if the target pid does not exist. As a special case, a signal of 0 can be used to test for the existence of a process. Windows platforms will throw an error if the pid is used to kill a process group.

尽管此函数的名字是 process.kill()，但它实际上只是信号发送者，就像 kill 系统调用。发送的信号可能会做其他事情而不是杀死目标进程。

¥Even though the name of this function is process.kill(), it is really just a signal sender, like the kill system call. The signal sent may do something other than kill the target process.

import process, { kill } from 'node:process';

process.on('SIGHUP', () => {
  console.log('Got SIGHUP signal.');
});

setTimeout(() => {
  console.log('Exiting.');
  process.exit(0);
}, 100);

kill(process.pid, 'SIGHUP');const process = require('node:process');

process.on('SIGHUP', () => {
  console.log('Got SIGHUP signal.');
});

setTimeout(() => {
  console.log('Exiting.');
  process.exit(0);
}, 100);

process.kill(process.pid, 'SIGHUP');拷贝

当 Node.js 进程收到 SIGUSR1 时，Node.js 将启动调试器。参见 信号事件。

¥When SIGUSR1 is received by a Node.js process, Node.js will start the debugger. See Signal Events.