> cd wrfprd
> ncview -frames *d02*
This will load all the output netcdf files from a run (domain 2) and when you play them in ncview - it will create .ppm image files from each frame. These can be put together into an animated GIF file with
> convert frames.*.ppm outmovie.gif
...assuming you have ImageMagick installed, which I believe is pretty standard in most Linux distros.
Patti

PS: This is discussed here: http://jupiter.ethz.ch/~pjt/makingMovies.html