fixup! Improve error handling using a fail-fast approach

Author: JohT

scripts/stopNeo4j.sh

@@ -50,8 +50,8 @@ else
 fi
 
 # Check if there are still processes running that listen to the Neo4j HTTP port
-port_listener_process_id=$( lsof -t -i:"${NEO4J_HTTP_PORT}" -sTCP:LISTEN )
-if echo -n "${port_listener_process_id}" | grep -q ".*"; then
+port_listener_process_id=$( lsof -t -i:"${NEO4J_HTTP_PORT}" -sTCP:LISTEN || true )
+if [ -n "${port_listener_process_id}" ]; then
     echo "stopNeo4j: Terminating the following process that still listens to port ${NEO4J_HTTP_PORT}"
     ps -p "${port_listener_process_id}"
     # Terminate the process that is listening to the Neo4j HTTP port