$ <span class="sh-fn">zbarimg</span> -q my-qr-code.svg  <span class="sh-cmt"># Also works with jpg, png, etc.</span>
QR-Code:otpauth://totp/GitHub:Mango0x45?secret=O1AIWMONKWVRJY4H&issuer=GitHub
$ <span class="sh-fn">zbarimg</span> -q my-qr-code.svg | <span class="sh-fn">sed</span> s/QR-Code:// | <span class="sh-fn">totp</span> -u
554210