To install the Barcode Scanner plugin, use the Cordova command line interface.

1. Add the Barcode Scanner plugin by entering the following at the command prompt, or terminal:

   cordova plugin add kapsel-plugin-barcodescanner --searchpath KAPSEL_HOME/plugins

2. (Optional) To see a list of installed plugins in your Cordova project, open a command prompt or terminal window, navigate to your Cordova project folder, and enter:
   cordova plugins
   The Cordova command line interface returns a JSON array showing installed plugins, for example:

   [ 'cordova-plugin-camera',     
   'cordova-plugin-device-motion',     
   'cordova-plugin-file' ] 

   This example shows that the Cordova project has the Cordova core Camera, Accelerator (device-motion), and File plugins installed.

3. Modify the files in the Cordova project's www folder as appropriate for your project.
4. Execute the following command to copy the files in the Cordova project's www folder to the platform directories:

   cordova prepare android
   cordova prepare ios
   cordova prepare windows 

5. Use an integrated development environment to deploy and run the project.