Node.js CLI read pipe data input example

bin.js

if (process.stdin) {
  process.stdin.setEncoding('utf8')
  process.stdin.resume()
  let content = ''
  process.stdin.on('data', (buf) => {
    content += buf.toString()
  })
  setTimeout(() => {
    const value = content.trim()

    if (!value) {
      value = cli.input[0]
    }

    run(value)
  }, 10)
} else {
  const value = cli.input[0]

  run(value)
}

function run(value) {
  console.log(value)
  process.exit(0)
}