title: set an environmental variable in node.js and then use it in terminal?
body: <p>well I'd like to add an environmental varible during the execution of a js file using node.js.</p>
  
  <p>Something like: 
  process.env['VARIABLE'] = 'value';</p>
  
  <p>I'm using the terminal to run the js file using a module, I can set the variable and then use it in during the js file execution, but I'd like to set the variable using "process.env", and then when the execution ends, I'd like to use it in the terminal, or in another js process as well.</p>
  
  <p>I know that it's possible using the child_process.exec, and use SET (Windows) or EXPORT (Mac &amp; Linux), but just asking how it can be possible it can be possible, or using which design or process to add it, just using "process.env".</p>
  
  <p>Thanks in advance, folks.</p>