notification.sh: Simple script to blink LED and show an notification

notification.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+source "$(dirname $0)/.env"
+
+
+#FIFO=/tmp/mapid
+LINE1='Backup finished!'
+LINE2=''
+LED_BLINK=".5s"
+DISPLAY_DURATION="4s"
+
+
+if [[ ! -e $FIFO ]]; then
+	echo "Error: $FIFO does not exist." >&2
+	exit 2
+fi
+
+
+echo >$FIFO "CLS"
+
+if [[ -n $LINE1 ]]; then
+        echo >$FIFO "LINE 1"
+        echo >$FIFO "ECHO $LINE1"
+fi
+
+if [[ -n $LINE2 ]]; then
+        echo >$FIFO "LINE 2"
+        echo >$FIFO "ECHO $LINE2"
+fi
+
+echo >$FIFO "LCDON"
+echo >$FIFO "ON"
+gsleep $LED_BLINK
+echo >$FIFO "OFF"
+gsleep $DISPLAY_DURATION
+echo >$FIFO "LCDOFF"