Copy multiple local files to docker container
<p>Similar to <a href="https://stackoverflow.com/questions/22907231/copying-files-from-host-to-docker-container">Copying files from host to Docker container</a>, except <code>docker cp</code> doesn't seem to work for multiple files</p>

<pre><code>$ docker cp data/a.txt sandbox_web_1:/usr/src/app/data/
</code></pre>

<p>works fine, but</p>

<pre><code>$ docker cp data/*txt sandbox_web_1:/usr/src/app/data/

docker: "cp" requires 2 arguments.
See 'docker cp --help'.

Usage:  docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-
docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH

Copy files/folders between a container and the local filesystem
Use '-' as the source to read a tar archive from stdin
and extract it to a directory destination in a container.
Use '-' as the destination to stream a tar archive of a
container source to stdout.
</code></pre>

<p>Using docker 1.11.1 on Ubuntu 14.04x64</p>