gistfile1.txt

vagrant@vagrant-ubuntu-raring-64:~/docker/bin$ docker build < ./test 
FROM ubuntu
RUN echo foo > bar
===> 546120c83189
FROM ubuntu
RUN echo moo > oink
===> fc5b04ef9d84
Build finished. image id: fc5b04ef9d84
fc5b04ef9d84
vagrant@vagrant-ubuntu-raring-64:~/docker/bin$ docker build < ~/griddle/nginx/test 
FROM ubuntu
RUN echo foo > bar
===> 546120c83189
FROM ubuntu
Build finished. image id: 8dbd9e392a96
8dbd9e392a96
vagrant@vagrant-ubuntu-raring-64:~/docker/bin$ md5sum test 
696069f5022502d9198081ba048c45fc  test
vagrant@vagrant-ubuntu-raring-64:~/docker/bin$ md5sum ~/griddle/nginx/test 
696069f5022502d9198081ba048c45fc  /home/vagrant/griddle/nginx/test