How to record a video and sound in a avi file from the command line?

Question

How can I record, in a single command both video from my webcam and sound from my microphone in a .avi file?

I tried below command:

streamer -q -c /dev/video0 -f rgb24 -r 3 -t 00:30:00 -o ~/outfile.avi

but it is not producing any sound.

Answer 1

I finally end up with:

ffmpeg -f alsa -ac 2 -i plughw:0,0 -f video4linux2 -s vga -i /dev/video0 video.mp4