qrencode
命令手册QR Code generator. Supports PNG and EPS. More information: https://fukuchi.org/works/qrencode.
qrencode -o {{path/to/output_file.png}} {{string}}
qrencode -o {{path/to/output_file.png}} -r {{path/to/input_file}}
qrencode -t ansiutf8 {{string}}
echo {{string}} | qrencode -t ansiutf8