running windows Comman_Prompt command through package.json scripts - node.js

Question

I need to run in command line (cmd)
npm run build
and after that, I need to run
xcopy C:\fileOne C:\fileTwo
BUT, I would like to run only one command and to execute both of those above.
So I thought maybe my package.json should look like this:
"scripts": {
"build": "react-scripts build",
"copy": "xcopy C:\path\firstFile C:\path\secondFile",
"zack": "npm run build && npm run copy",
},
based on this idea:
"scripts": {
"a1": "command1",
"a2": "command2",
"zack": "npm run a1 && npm run a2",
},
and then I could run in command line:
npm run zack
but I'm not managing to make it happen
(the reason why I'm doing this, is: I want to change source code in SubliteText 3 (HTML JS CSS) and automatically to send (copy-paste) in Eclipse (in some other project) )
I want to do this:
My main problem is how to put local directory path inside the string in package.json file.

Answer 1

Instead of writing commands directly inside the package.json you should write a script file that handles it for you.
Something like
var fs = require('fs');
fs.createReadStream('PATH_TO_FILE_ONE').pipe(fs.createWriteStream('PATH_TO_NEW_FILE'));
save the above script as something like afterBuild.js
and in your package.json just do zack as npm run build && node afterBuild.js

Answer 2

I installed npc module:
npm install ncp -g
npm install ncp --save
then I created a file: afterBuild.js and I inserted this code inside:
var ncp = require("ncp");
ncp("C:/directory/file.txt", "C:/destination/directory/file.txt", callback);
function callback(){} //empty function, I don't need it for the start
and in package.json i wrote:
"scripts": {
"build": "react-scripts build",
"zack": "npm run build && node afterBuild.js"
},
and I run it form command line like:
npm run zack