HereDoc notation has been used for a while now in Bash, SQL, PHP, and other scripting languages. It allows a very long command to be broken down into several more readable lines while still being treated as a single command.

• Buildah v1.35
• Podman v5.0

FROM docker.io/redhat/ubi9-minimal as builder

RUN <<EOF
microdnf update
microdnf -y install gcc 
microdnf -y install glibc-static
microdnf -y install procps-ng
EOF