qr - Man Page
script to create QR codes at the command line
Examples (TL;DR)
- Generate a QR code:
echo "data" | qr - Specify the error correction level (defaults to M):
echo "data" | qr --error-correction=L|M|Q|H
Synopsis
qr [--help] [--factory=FACTORY] [--optimize=OPTIMIZE] [--error-correction=LEVEL] [data]
Description
This script uses the python qrcode module. It can take data from stdin or from the commandline and generate a QR code. Normally it will output the QR code as ascii art to the terminal. If the output is piped to a file, it will output the image (default type of PNG).
Options
- -h, --help
Show a help message.
- --factory=FACTORY
Full python path to the image factory class to create the image with. You can use the following shortcuts to the built-in image factory classes: pil (default), png ( default if pillow is not installed), svg, svg-fragment, svg-path.
- --optimize=OPTIMIZE
Optimize the data by looking for chunks of at least this many characters that could use a more efficient encoding method. Use 0 to turn off chunk optimization.
- --error-correction=LEVEL
The error correction level to use. Choices are L (7%), M (15%, default), Q (25%), and H (30%).
- data
The data from which the QR code will be generated.