[FFmpeg-user] automatically exiting after writing file

[dave fournier]

HI,

This must be simple, but I can't find it anywhere. I am writing output 
from a wifi camera to a file with
a statement like

  ffmpeg -rtsp_transport tcp -i "rtsp://xxx.xxx.xxx/11" -c copy -t 30 
"fullpath/moviename.avi"

This writes a 30 second file. My problem is that after writing the file 
ffmpeg does not exit.
How can I get it to quit after writing the file.

         Thanks,

           Dave