diff --git a/cluster/maco.check.update.sh b/cluster/maco.check.update.sh
index e4a9c0d..19a6ac7 100755
--- a/cluster/maco.check.update.sh
+++ b/cluster/maco.check.update.sh
@@ -3,6 +3,7 @@
 # This script will check if Maco require an upgrade and
 # will prepare the host in order to apply upgrade :
 #   1. Disable SGE queue
+#   2. Create a temp file (/tmp/.maco.upgrade or /tmp/.maco.urgent.upgrade)
 
 # This script can be call by a cronjob (eg. weekly)
 # Another script should try to apply upgrades also with cron (eg. hourly)
@@ -34,6 +35,8 @@ readonly COLOR_DEBUG="${PURPLE}"
 ## Maco
 readonly MACO_LOCAL_DIR="/opt/maco"
 readonly MACO_INSTALL_DIR="/mnt/store.ipr/InstallProgs/ipr/maco"
+readonly MACO_TMP_FILE="/tmp/.maco.upgrade"
+readonly MACO_TMP_URGENT_FILE="/tmp/.maco.urgent.upgrade"
 # }}}
 
 usage() {                                                       # {{{
@@ -108,10 +111,15 @@ is_maco_urgent_upgrade_require() {                              # {{{
 Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
 		message "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})."
 		return_urgent_upgrade="0"
+		## Also create an urgent temp file that can be monitored
+		## touch and append to keep existing content
+		touch "${MACO_TMP_URGENT_FILE}" && echo "Urgent Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${URGENT_MACO_VERSION})." >> "${MACO_TMP_URGENT_FILE}"
 	else
 		debug_message "is_maco_urgent_upgrade_require − \
 Local Maco (${CURRENT_MACO_VERSION}) is newer than urgent upgrade (${URGENT_MACO_VERSION})."
 		return_urgent_upgrade="1"
+		## Ensure urgent temp file is not present
+		rm -f -- "${MACO_TMP_URGENT_FILE}"
 	fi
 
 	return "${return_urgent_upgrade}"
@@ -127,10 +135,15 @@ is_maco_upgrade_require() {                                     # {{{
 Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
 		message "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})."
 		return_upgrade="0"
+		## Also create a temp file that can be monitored
+		## touch and append to keep existing content
+		touch "${MACO_TMP_FILE}" && echo "Latest Maco upgrade is available (from version ${CURRENT_MACO_VERSION} to ${LATEST_MACO_VERSION})." >> "${MACO_TMP_FILE}"
 	else
 		debug_message "is_maco_upgrade_require − \
 Local Maco (${CURRENT_MACO_VERSION}) seems up to date (latest: ${LATEST_MACO_VERSION})."
 		return_upgrade="1"
+		## Ensure temp file is not present
+		rm -f -- "${MACO_TMP_FILE}"
 	fi
 
 	return "${return_upgrade}"
@@ -146,6 +159,8 @@ is_maco_uptodate() {                                            # {{{
 Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
 		message "Local Maco (${CURRENT_MACO_VERSION}) is up to date (latest: ${LATEST_MACO_VERSION})."
 		return_uptodate="0"
+		## Ensure to remove temp files
+		rm -f -- "${MACO_TMP_FILE}" "${MACO_TMP_URGENT_FILE}"
 	else
 		debug_message "is_maco_uptodate − \
 Local Maco version (${CURRENT_MACO_VERSION}) is different from latest version (${LATEST_MACO_VERSION})."