See https://stackoverflow.com/questions/
19456518/invalid-command-code-despite-escaping-periods-using-sed
cp -r quantum/template keyboards/$KEYBOARD
mv keyboards/$KEYBOARD/template.c keyboards/$KEYBOARD/$KEYBOARD.c
mv keyboards/$KEYBOARD/template.h keyboards/$KEYBOARD/$KEYBOARD.h
-find keyboards/${KEYBOARD} -type f -exec sed -i "s;%KEYBOARD%;$KEYBOARD;g" {} \;
-find keyboards/${KEYBOARD} -type f -exec sed -i "s;%KEYBOARD_UPPERCASE%;$KEYBOARD_UPPERCASE;g" {} \;
+find keyboards/${KEYBOARD} -type f -exec sed -i'' -e "s;%KEYBOARD%;$KEYBOARD;g" {} \;
+find keyboards/${KEYBOARD} -type f -exec sed -i'' -e "s;%KEYBOARD_UPPERCASE%;$KEYBOARD_UPPERCASE;g" {} \;
echo "######################################################"
echo "# /keyboards/$KEYBOARD project created. To start"