const exec = require("child_process").exec
exec("ls", (error, stdout, stderr) => {
 //do whatever here
})

如果你想要一个与顶级答案非常相似但同时也是同步的答案，那么这将起作用。

var execSync = require('child_process').execSync;
var cmd = "echo 'hello world'";

var options = {
  encoding: 'utf8'
};

console.log(execSync(cmd, options));

您正在查找child_process.exec

以下是示例：

const exec = require('child_process').exec;
const child = exec('cat *.js bad_file | wc -l',
    (error, stdout, stderr) => {
        console.log(`stdout: ${stdout}`);
        console.log(`stderr: ${stderr}`);
        if (error !== null) {
            console.log(`exec error: ${error}`);
        }
});

节点JS v15.8.0、LTS v14.15.4和v12.20.1——2021 2月

异步方法（Unix）：

'use strict';

const { spawn } = require( 'child_process' );
const ls = spawn( 'ls', [ '-lh', '/usr' ] );

ls.stdout.on( 'data', ( data ) => {
    console.log( `stdout: ${ data }` );
} );

ls.stderr.on( 'data', ( data ) => {
    console.log( `stderr: ${ data }` );
} );

ls.on( 'close', ( code ) => {
    console.log( `child process exited with code ${ code }` );
} );

异步方法（Windows）：

'use strict';

const { spawn } = require( 'child_process' );
// NOTE: Windows Users, this command appears to be differ for a few users.
// You can think of this as using Node to execute things in your Command Prompt.
// If `cmd` works there, it should work here.
// If you have an issue, try `dir`:
// const dir = spawn( 'dir', [ '.' ] );
const dir = spawn( 'cmd', [ '/c', 'dir' ] );

dir.stdout.on( 'data', ( data ) => console.log( `stdout: ${ data }` ) );
dir.stderr.on( 'data', ( data ) => console.log( `stderr: ${ data }` ) );
dir.on( 'close', ( code ) => console.log( `child process exited with code ${code}` ) );

同步：

'use strict';

const { spawnSync } = require( 'child_process' );
const ls = spawnSync( 'ls', [ '-lh', '/usr' ] );

console.log( `stderr: ${ ls.stderr.toString() }` );
console.log( `stdout: ${ ls.stdout.toString() }` );

来自Node.js v15.8.0文档

Node.js v14.15.4文档和Node.js v12.20.1文档也是如此

如果您不介意依赖关系，并且希望使用promise，那么子进程promise可以：

安装

npm install child-process-promise --save

exec用法

var exec = require('child-process-promise').exec;
 
exec('echo hello')
    .then(function (result) {
        var stdout = result.stdout;
        var stderr = result.stderr;
        console.log('stdout: ', stdout);
        console.log('stderr: ', stderr);
    })
    .catch(function (err) {
        console.error('ERROR: ', err);
    });

派生用法

var spawn = require('child-process-promise').spawn;
 
var promise = spawn('echo', ['hello']);
 
var childProcess = promise.childProcess;
 
console.log('[spawn] childProcess.pid: ', childProcess.pid);
childProcess.stdout.on('data', function (data) {
    console.log('[spawn] stdout: ', data.toString());
});
childProcess.stderr.on('data', function (data) {
    console.log('[spawn] stderr: ', data.toString());
});
 
promise.then(function () {
        console.log('[spawn] done!');
    })
    .catch(function (err) {
        console.error('[spawn] ERROR: ', err);
    });

ECMAScript模块导入。。。from语法

import {exec} from 'child-process-promise';
let result = await exec('echo hi');
console.log(result.stdout);

const exec = require("child_process").exec
exec("ls", (error, stdout, stderr) => {
 //do whatever here
})