How to create and read QR code in Ubuntu

According to Wikipedia, A QR code (short for Quick Response) is a specific matrix barcode (or two-dimensional code). The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data.


1. Create QR Code: qrencode is an utility in Ubuntu used to create QR code. To install it Ubuntu open terminal (Ctrl + Alt + t) and type