#!/bin/bash

apt update -qq --silent 2> /dev/null

UPGRADABLE=$(apt list --upgradable -qq 2> /dev/null | cut -d '/' -f 1)

if test "$UPGRADABLE" != ""
then
  echo "$(wc -l <<< $UPGRADABLE) package(s) upgradable:"
  echo
  echo "$UPGRADABLE"
  exit 1
else
  exit 0
fi