text: #!/usr/bin/node
  
  const fs   = require('fs'),
        uid  = process.argv[2],
        gid  = process.argv[3],
        file = process.argv[4];
  
  if(process.argv.length !== 5) {
    console.error('命令行参数不正确！');
    process.exit(1);
  }
  
  try{
    fs.chownSync(file, Number(uid), Number(gid));
  } catch(err) {
    console.error(err.message);
    process.exit(2);
  }
  