diff --git a/packaging/common/ATCS.sh b/packaging/common/ATCS.sh
index 41d78b2..21bcfbf 100755
--- a/packaging/common/ATCS.sh
+++ b/packaging/common/ATCS.sh
@@ -1,21 +1,26 @@
 #!/bin/bash
-ATCS_DIR=$(dirname $(readlink -f "$0" || greadlink -f "$0" || stat -f "$0"))
+ATCS_DIR="$(dirname "$(readlink -f "$0" || greadlink -f "$0" || stat -f "$0")")"
+echo "ATCS_DIR: '${ATCS_DIR}'"
 
-MAX_MEM=512M
-
-JAVA=java
+MAX_MEM="512M"
+JAVA="java"
 JAVA_OPTS='-DFONT_SCALE=1.0 -Dswing.aatext=true'
-ENV_FILE=${ATCS_DIR}/ATCS.env
 
-if [ -f ${ENV_FILE} ]; then
-	source ${ENV_FILE}
+ENV_FILE="${ATCS_DIR}/ATCS.env"
+
+if [ -f "${ENV_FILE}" ]; then
+	source "${ENV_FILE}"
 else
-	echo "#MAX_MEM=${MAX_MEM}" >${ENV_FILE}
-	echo "#JAVA=${JAVA}" >>${ENV_FILE}
-	echo "#JAVA_OPTS=${JAVA_OPTS}" >>${ENV_FILE}
-	echo "" >>${ENV_FILE}
+  {
+    echo "#MAX_MEM=\"${MAX_MEM}\""
+    echo "#JAVA=\"${JAVA}\""
+    echo "#JAVA_OPTS=\"${JAVA_OPTS}\""
+    echo ""
+  }>"${ENV_FILE}"
 fi
 
 export ENV_FILE
-
-$JAVA ${JAVA_OPTS} -Xmx${MAX_MEM} -jar ${ATCS_DIR}/ATCS.jar
+exit 1
+# shellcheck disable=SC2086
+# (spellchecker is disabled for this line, because we want it to be split into multiple arguments)
+$JAVA ${JAVA_OPTS} -Xmx${MAX_MEM} -jar "${ATCS_DIR}/ATCS.jar"