Attach new interactive bash shell to runnig docker container

.bashrc

# to attach new bash sessions to docker container
# assumes that only one container is active, finds that containers id and attaches a new bash shell to it..
attach_new_sess () { 
  sudo docker ps; 
  containerid=$(sudo docker ps | tail -1 | awk '{print $1}'); 
  echo "Extracted CONAINER ID: $containerid"; 
  echo "Spawning new bash shell in container..."
  sudo docker exec -it $containerid bash;
}
alias ans='attach_new_sess'