RUN APT non-interactively, clean APT cache (for instance, on Docker/Dockerfile)

docker-apt-clean

# At least in the good old days, declaring apt "frontend" as `noninteractive` used to be necessary,
# I don't know if that still applies, but I keep doing it anyways...doesn't hurt.
# Same thing for `apt-get clean`, not necessary anymore but I keep it there.
# (https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#apt-get)

RUN DEBIAN_FRONTEND='noninteractive'              && \
    apt-get update                                && \
    apt-get install -y vim                        && \
    apt-get clean && rm -rf /var/lib/apt/lists/*