const fs = require('fs');

if(process.argv.length >= 3){
    try{
      const content = fs.readFileSync(process.argv[3], {encoding: 'utf-8'});
      console.log(content)
    }
    catch(e){
      switch(e.code){
        case "ENOENT":
          console.error(`file "${process.argv[3]}" does not exist.`);
          break;
        default:
            console.error(`error: code ${e.code}`)
      }
    }

}