Run shell script inside Angular app packaged in Electron

I was able to achieve that using ngx-childprocess

In 3 steps:

1. in your electron/angular app install ngx-childprocess

   yarn add ngx-childprocess
   or
   npm install ngx-childprocess --save
   

2. add gx-childprocess into app.module

   imports: [
       NgxChildProcessModulem
       ....
   

3. run the script (in this case I am running java jar)

   import { ChildProcessService } from 'ngx-childprocess';
   ... 
   export class AppComponent {
   
      constructor(private childProcessService: ChildProcessService) {
           console.log('isElectronApp ' + childProcessService.isElectronApp);
           let options: string[] = [];
           childProcessService.childProcess.exec('java -jar child-process-test-1.0.jar', 
                                                 options,
                                                 (data) => {console.log(data);});
      }
   }