OS X 10.8.3, from a terminal I am executing:
$ curl -OCv http://<URL>/<file>.dmg
I get (for 2 seconds)
% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 222 100 222 0 0 46707 0 --:--:-- --:--:-- --:--:-- 108k
Then it does nothing. Back to a prompt.
I know the URL is right. It my own domain, public website. I know the file.dmg is right as well, I put it there a few mins ago to test.
I see 222K file on my desktop to, but obviously this is because it failed.
a 3.7gb DMG if that is helpful.
EDIT: I also tried
$ curl -OCvi same thing occurs.