How to format an USB

I would like to make use of this post to explain to you how you can format you USB from linux (in an Ubuntu "Fiesty", to be precise :P).
The steps you have to follow are very simply:

1. Connect you usb.
2. If it is mounted automatically you have to umount it before you can format it:
   $ cat /etc/mtab
   # With this command you can look for your usb device
   $ sudo umount /dev/sdb1
   
3. Formatting:
   $ sudo mkfs.vfat -I /dev/sdb1
   # The command mkfs.vfat formats your usb into FAT32
   
4. Mount the usb:
   $ sudo mount -t auto /dev/sdb1 /media/disk
5. Check its capacity:
   $df -h

With this 5 steps you will have your USB as a new one. It's easy, isn't it? :D