lat: -12.984635 long: -038.451413 speed: 000.0 10/03/12 01:

[magaupe]

Whats the best regex to extract this info in bold?

lat: -12.984635 long: -038.451413 speed: 000.0 10/03/12 01:47 bat:L signal:F bat: imei:353579019648894
These are numbers that mean latitude, longitude and speed of a certain object sended by a gps tracker.

Thank you.

[bitmonger]

You could capture them using something like:
lat: *(-?\d+\.\d+) *long: *(-?\d+\.\d+) *speed: *(\d+\.\d*).+
They would be in \1, \2, and \3 captured groups respectively, but I'm not sure what this has to do with renaming.