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It will be saved to your computer's home directory, so you can use the built-in file manager to access it. This QR code will be called QR-code.png, which is 9 pixels in size and uses a high level of correction (H). With this command, the example is generating a QR code for the text "This is a test QR code!".
LINUX QR CODE READER HOW TO
Now that you're familiar with the basic qrencode options, here's how to stitch them together into one command to generate a QR code that outputs text: qrencode -s 9 -l H -o "QR-code.png" "This is a test QR code!" Its default value is PNG, but you can set it to a bunch of other formats.įor more qrencode options, run the following command in a command line window: qrencode -help -t filetype : This option allows you to decide the file type for your QR code.It basically decides how a change in the QR code affects its scanability. -l error_correction_level : As the name suggests, this option allows you to set the error correction level for your QR code.
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By default, its value is set to three, but you can change it based on your requirements.
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Here are all the necessary options (and their properties) that you need to know to generate a basic QR code:
LINUX QR CODE READER INSTALL
If you are using openSUSE, run: sudo zypper install qrencode Step 2: Use qrencode to generate QR codeĪs a CLI-based tool, qrencode involves using a series of different options to generate QR codes. On Arch Linux and Manjaro, you can install qrencode with Pacman, like this: sudo pacman -S qrencode To install qrencode on Fedora use: sudo dnf install qrencode On Ubuntu and its derivatives, open Terminal and run the following command to install qrencode: sudo apt install qrencode So follow the steps listed below to install qrencode on your system: Just like any other program, doing this on a Linux machine depends entirely on the Linux distribution you're using. Step 1: Install qrencode on Linuxįirst, you need to install the qrencode program on your computer. Let's follow how to create QR codes on Linux with qrencode through the following article. For example, you can use QR codes to share access to your home WiFi with guests or to share your contact information. QR codes have other useful uses in today's world. If you have been to convenience stores or coffee shops, you may have seen QR codes there to receive payments or share WiFi passwords, among many other things.īut that's not all.