diff --git a/cis-harden/harden.sh b/cis-harden/harden.sh
index ee5e78b..f71aa29 100755
--- a/cis-harden/harden.sh
+++ b/cis-harden/harden.sh
@@ -529,15 +529,15 @@ harden_system() {
 	fi
 
 	echo "Fix permission of all cron files"
-	for each in $(echo /etc/cron.daily /etc/cron.hourly /etc/cron.d /etc/cron.monthly /etc/cron.weekly /etc/crontab)
-	do
-	if [[ -e ${each} ]]; then
-		stat -L -c "%a %u %g" "${each}" | grep -E ".00 0 0"
-		if $? -ne 0 ; then
-			chown root:root "${each}"
-			chmod og-rwx "${each}"
+	cron_files="/etc/etc/cron.daily /etc/cron.hourly /etc/cron.d /etc/cron.monthly /etc/cron.weekly /etc/crontab"
+	for each in ${cron_files}; do
+		if [[ -e ${each} ]]; then
+			stat -L -c "%a %u %g" "${each}" | grep -E ".00 0 0"
+			if $? -ne 0 ; then
+				chown root:root "${each}"
+				chmod og-rwx "${each}"
+			fi
 		fi
-	fi
 	done
 
 	echo "Remove cron and at deny files and have allow files in place"
diff --git a/earthly.sh b/earthly.sh
index 68dc6eb..df9d496 100755
--- a/earthly.sh
+++ b/earthly.sh
@@ -28,7 +28,7 @@ function build_with_proxy() {
         -v "$(pwd)/certs:/usr/local/share/ca-certificates:ro" \
         -v earthly-tmp:/tmp/earthly:rw \
         -p 8372:8372 \
-        "$SPECTRO_PUB_REPO"/third-party/edge/earthly/buildkitd:$EARTHLY_VERSION
+        "$SPECTRO_PUB_REPO"/third-party/edge/earthly/buildkitd:"$EARTHLY_VERSION"
     # Update the CA certificates in the container
     docker exec -it earthly-buildkitd update-ca-certificates
 
@@ -49,12 +49,12 @@ function build_with_proxy() {
         -v "$(pwd)":/workspace \
         -v "$(pwd)/certs:/usr/local/share/ca-certificates:ro" \
         --entrypoint /workspace/earthly-entrypoint.sh \
-        "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:$EARTHLY_VERSION --allow-privileged "$@"
+        "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:"$EARTHLY_VERSION" --allow-privileged "$@"
 }
 
 function build_without_proxy() {
     # Run Earthly in Docker to create artifacts  Variables are passed from the .arg file
-    docker run --privileged -v ~/.docker/config.json:/root/.docker/config.json -v /var/run/docker.sock:/var/run/docker.sock --rm --env EARTHLY_BUILD_ARGS -t -e GLOBAL_CONFIG="$global_config" -v "$(pwd)":/workspace "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:$EARTHLY_VERSION --allow-privileged "$@"
+    docker run --privileged -v ~/.docker/config.json:/root/.docker/config.json -v /var/run/docker.sock:/var/run/docker.sock --rm --env EARTHLY_BUILD_ARGS -t -e GLOBAL_CONFIG="$global_config" -v "$(pwd)":/workspace "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:"$EARTHLY_VERSION" --allow-privileged "$@"
 }
 
 function print_os_pack() {
@@ -127,11 +127,11 @@ if $? -ne 0 ; then
     exit 1
 fi
 # Cleanup builder helper images.
-docker rmi "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:$EARTHLY_VERSION
+docker rmi "$SPECTRO_PUB_REPO"/third-party/edge/earthly/earthly:"$EARTHLY_VERSION"
 if [ "$(docker container inspect -f '{{.State.Running}}' earthly-buildkitd)" = "true" ]; then
     docker stop earthly-buildkitd
 fi
-docker rmi "$SPECTRO_PUB_REPO"/third-party/edge/earthly/buildkitd:$EARTHLY_VERSION 2>/dev/null
+docker rmi "$SPECTRO_PUB_REPO"/third-party/edge/earthly/buildkitd:"$EARTHLY_VERSION" 2>/dev/null
 docker rmi "$ALPINE_IMG"
 
 if [[ "$1" == "+uki-genkey" ]]; then
diff --git a/overlay/files/opt/spectrocloud/bin/check-disk-size.sh b/overlay/files/opt/spectrocloud/bin/check-disk-size.sh
index 845ef1b..ccaee5c 100755
--- a/overlay/files/opt/spectrocloud/bin/check-disk-size.sh
+++ b/overlay/files/opt/spectrocloud/bin/check-disk-size.sh
@@ -6,7 +6,7 @@ REQUIRED_FREE_DISK=$1
 
 FREE=$(df -h --output=pcent /var/ | tail -n 1 | tr -d '\% ')
 
-if (( FREE < REQUIRED_FREE_DISK )); then
+if (( "${FREE}" < "${REQUIRED_FREE_DISK}" )); then
    echo "Not enough free disk, required: $1. Free: $FREE"
    exit 1
 fi