jenkins-shell-monitor: correctly deal with little used directories

Signed-off-by: Holger Levsen <holger@layer-acht.org>

bin/jenkins-shell-monitor.sh

@@ -77,7 +77,7 @@ main_loop() {
 				"/dev/vda1")
 					for DIR_PATH in /var/lib/jenkins /var/lib/schroot /srv/schroots /srv/reproducible-results/rbuild-debian ; do
 						DU=$(sudo du -shx $DIR_PATH 2>/dev/null | awk '{ print $1 }')
-						if [ -n "$(echo $DU | grep G)" ] && [ -n "${WARNING_LEVEL[$DIR_PATH]}" ] && [ "${WARNING_LEVEL[$DIR_PATH]}" -lt "$(echo $DU | cut -d 'G' -f1)" ] ; then
+						if [ -n "$(echo $DU | grep G)" ] && [ -n "${WARNING_LEVEL[$DIR_PATH]}" ] && [ "${WARNING_LEVEL[$DIR_PATH]}" -lt "$(echo $DU | cut -d 'G' -f1 | cut -d '.' -f1)" ] ; then
 							DIR_USAGE="${YELLOW}$DU${FOREGROUND_COLOR}"
 						else
 							DIR_USAGE=$DU