Up to the previous Ubuntu versions you could easily switch on a status line at the bottom of the files browser, which showed useful infos like the amount of free disk space, number of files in directory, number of selected files and amount of data of selected files.
How do I get these informations with Raring Ringtail?
sigh
Imagine you want to copy a 5 GB file to a USB drive or memory stick and the computer just says "not enough free space" – how should you know whether you have to delete just a few MB to make it fit or wheter the device is full? And when you multi-select files to copy or delete, do you then have to calculate by yourself?
Soemtimes I really wonder how others are using their computer when a feature is removed that seems to be totally essential. Maybe they have tons of terabytes of hard disk drives and a couple of 64+ GB flash memory sticks so they never run out of free space.
Best Answer
You need to switch file browsers or submit a bug to have the feature re-added. The maintainers of that project decided to remove it for some (IMO) nonsense reason that I will likely never be convinced of.
Ranting aside your only options are to find a fork where someone put it back, like nemo, use a different file manager (there are several), or complain a lot in bug reports and mailing lists till the maintainers put it back or allow you to put it back (it is opensource after all).