update-notifier/pacman-update-count

#!/bin/sh

set -e

_updates_available="-1"
_target_file="/tmp/pacman-update-count"
_user="ray"
_user_id=$(id -u)

if ! [ "$_user_id" -eq 0 ] ; then
  echo "pacman-update-count.sh: insufficient priviliges: must be run as root"
  exit 1
fi

touch "$_target_file"
chown root: "$_target_file"
echo "$_updates_available" > "$_target_file"

pacman -Sy
_updates_available=$(pacman -Qu | wc -l)

echo "Adding $_updates_available available updates to $_target_file"
echo "$_updates_available" > "$_target_file"
chown "$_user": "$_target_file"