Node.js?? ??? ???? ??

?? ???? ??? CLI ?????? ?? ???? Node.js? ??? ? ???? ?????. Node.js?? ?? ???? ?? ?? ??? ?? ??? ????:

child_process.exec

?? ??? ?? exec? ??????:

const { exec } = require('child_process');
exec('cat *.js bad_file | wc -l', (err, stdout, stderr) => {
  if (err) return; // Node couldn't execute the command

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

child_process.spawn

??? ????? ????? ??? ?????. generate:

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

// For text chunks, use `child.stdout.setEncoding('utf8');`
child.stdout.on('data', (chunk) => { /* data in chunks */ });

// Pipe the stream elsewhere
child.stderr.pipe(dest);

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

??? ??

Node.js? exec ? generate ??? ?? ??? ??? ?????.

const { execSync } = require('child_process');
let stdout = execSync('ls');

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

console.log('error', child.error);
console.log('stdout ', child.stdout);
console.log('stderr ', child.stderr);

??? ??

ES5 ?? Node.js ??? ?? ????? ?? ??? ???????. ???:

// Complete output as a buffer
var exec = require('child_process').exec;
exec('prince -v builds/pdf/book.html -o builds/pdf/book.pdf',
  function(error, stdout, stderr) { // command output in stdout });

// Handling large output chunks with streams
var spawn = require('child_process').spawn;
var child = spawn('prince', ['-v', 'builds/pdf/book.html', '-o', 'builds/pdf/book.pdf']);

// Output in chunks
child.stdout.on('data', (chunk) => { /* data in chunks */ });

// Piping output
child.stdout.pipe(dest);

? ??? Node.js?? ??? ????? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!