qr
Print Unicode-friendly QR Codes® straight in your terminal!
How to build
$ make
Build dependencies
- libqrencode
Resolve on Ubuntu or Debian
$ apt-get install libqrencode-devResolve on macOS
$ brew install qrencodeBuild from source
$ git clone https://github.com/fukuchi/libqrencode.git && cd libqrencode $ ./configure --prefix=/usr/local $ make # make install
How to install
# make install
or
$ sudo PREFIX=/usr/local make install
How to build and install using containers
$ docker build -t y2z/qr .
$ sudo install -b utils/qr.sh /usr/local/bin/qr
How to build and install on FreeBSD
$ pkg install qr
or
$ cd /usr/ports/textproc/qr/
$ make install clean
Usage
$ qr "Hello"
or
$ echo -n "Hello" | qr
Options
Usage: qr [OPTIONS] STRING
or: cat FILE | qr [OPTIONS]
Options:
-m QR mode [na8k] (n = number, a = alphabet, 8 = 8-bit, k = Kanji)
-v QR version [1-40]
-e QR EC level [lmqh] or [1-4]
-l use two characters per block
-c compact mode
-b border width [1-4] (the default is 1)
-i invert colors
-p force colorless output
-h print help info and exit
-V print version info and exit
How to remove
# make uninstall
Running tests
$ make test
Test dependencies
- autoconf
Resolve on Ubuntu or Debian
$ apt-get install autoconfResolve on macOS
$ brew install autoconf - zbar
Resolve on Ubuntu or Debian
$ apt-get install zbar-toolsResolve on macOS
$ brew install zbar - imagemagick
Resolve on Ubuntu or Debian
$ apt-get install imagemagickResolve on macOS
$ brew install imagemagick - FreeMono font
Resolve on Ubuntu or Debian
$ apt-get install fonts-freefont-ttfResolve on macOS
$ brew tap homebrew/cask-fonts $ brew install --cask font-freefont
Acknowledgements
QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.
License
To the extent possible under law, the author(s) have dedicated all copyright related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty.