Docker copy file from container to host during build code example

Example 1: copy file from docker container to host

docker cp <containerId>:/file/path/within/container /host/path/target

Example 2: copy file from docker container to host

docker cp <containerId>:/file/path/within/container /host/path/target

Example 3: copy file from host to docker container

docker cp foo.txt mycontainer:/foo.txt