How to pipe to `docker exec` examples

pipe_to_docker_examples

# These examples assume you have a container currently running.

# 1 Pipe from a file
sudo docker exec --interactive CONTAINER_NAME /bin/bash < the_beginning.sh | tee the_beginning_output.txt`

#2a Pipe by piping
echo "echo This is how we pipe to docker exec" | sudo docker exec --interactive CONTAINER_NAME /bin/bash - 

the_beginning.sh

curl --head "http://info.cern.ch/hypertext/WWW/TheProject.html"