split run command in multiple lines

Dockerfile

@@ -7,7 +7,15 @@ EXPOSE 5000
 WORKDIR /app
 ADD ./app /app
 
-RUN apt update && apt install apt-utils sqlite3 -y && apt upgrade -y && rm -rf /var/cache/apt && python3 -m pip install -r /app/requirements.txt && rm /app/requirements.txt && chmod +x /app/import.sh && chmod +x /app/export.sh && date > builddate.txt
+RUN apt update && \
+    apt install apt-utils sqlite3 -y && \
+    apt upgrade -y && \
+    rm -rf /var/cache/apt && \
+    python3 -m pip install -r /app/requirements.txt && \
+    rm /app/requirements.txt && \
+    chmod +x /app/import.sh && \
+    chmod +x /app/export.sh && \
+    date > builddate.txt
 
 #everytime the container starts run main.py
 ENTRYPOINT python3 main.py
\ No newline at end of file