Circle is capable of running as a daemon, with no user interface. This allows you to publish files from a server, which you can then access from any computer connected to the internet.
First, specify a public directory by typing something like:
circled publish /home/jsmith/my_public_circle
Next, start the daemon:
circled start
You can check the status of the daemon (number of files published, network usage, number of known peers) by typing the following:
circled status
You can stop a running daemon by typing:
circled stop
You can also make the Circle daemon load automatically at boot time: (you have to be root to do this)
circled autostart
If you no longer want the daemon to load automatically at boot, simply type:
circled noautostart