this is the first time I install ubuntu server. I'm comfortable installing things on ubuntu and others distro (arch, gentoo) using the command line.

But I don't know how to bring up Internet connection trough command line. I don't wan't GUI. The tutos always use ethernet or wifi. But I only have wifi and the computer don't have the hardware to access it. So I used the cellphone as modem to bring the wifi trough USB. This worked fine under ubuntu (with GUI) and during install process.

But now I have rebooted and I don't know how to access the modem/cell/internet using the command line. I need it to finallize the installation (ex. install python-django), later it will be connected by ethernet.

Thanks for any cue or help.