From dff2822c98d8858ed0eff9f054f1be90cfbc2f6f Mon Sep 17 00:00:00 2001
From: Corrado Mulas <corrado@mulas.me>
Date: Sat, 9 Apr 2022 00:06:08 +0000
Subject: [PATCH] Aggiungi 'updrbchk'

Bash script which looks for available updates and if host needs to be rebooted. Then, a notification is sent with Telegram Bot API on a chatID of your choice with telegram-send auxiliary script.
---
 updrbchk | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 updrbchk

diff --git a/updrbchk b/updrbchk
new file mode 100644
index 0000000..7c0314f
--- /dev/null
+++ b/updrbchk
@@ -0,0 +1,32 @@
+#!/bin/bash
+IFS=';' read updates security_updates < <(/usr/lib/update-notifier/apt-check 2>&1)
+HOSTNAME=`hostname`
+
+if [ ! -f ".update-check-status" ] ; then
+    echo "0:0" > .update-check-status
+fi
+
+CONTROL="$updates:$security_updates"
+HASCHANGED=false
+ACTUALSTATE=`cat .update-check-status`
+
+if [ "$ACTUALSTATE" != "$CONTROL" ]; then
+    HASCHANGED=true
+    echo $CONTROL > .update-check-status
+fi
+
+function send_message {
+/usr/bin/telegram-send "[ACTION REQUIRED ON $HOSTNAME]
+
+$1"
+}
+
+if [ $updates -gt 0 ] || [ $security_updates -gt 0 ] ; then
+    if $HASCHANGED; then
+        send_message "There are *$updates* updates available for *$HOSTNAME* and *$security_updates* of them are security updates"
+    fi
+fi
+
+if [ -f /var/run/reboot-required ]; then
+    send_message "Reboot needed on *$HOSTNAME*"
+fi