Merge branch 'dev' of https://github.com/rootzoll/raspiblitz into dev

home.admin/_commands.sh

@@ -368,3 +368,18 @@ function whitepaper() {
   cd /home/admin/config.scripts
   ./bonus.whitepaper.sh on
 }
+
+# command: qr ["string"]
+# shows a QR code from the string
+function qr() {
+  if [ ${#1} -eq 0 ]; then
+    echo "# Error='missing string'"
+  fi
+  echo
+  echo "Displaying the text:"
+  echo "$1"
+  echo
+  qrencode -t ANSIUTF8 "${1}"
+  echo "(To shrink QR code: MacOS press CMD- / Linux press CTRL-)"
+  echo
+}