Yesterday I attended a talk about Robotics with Raspberry Pi given by Psykia. Bernardo Ronquillo teach us the possibilities of the use of ROS as an operating system developed for robotics and their possibilities. We all hope to learn a lot. If someone wants to go through the Meetup in Seville (Spain), there you will find all the necessary information.
Command of the week thanks to @joewalnes:
$ cat file1.js file2.js file3.js > app.js