Hacks: "Mac OS X CLI Utility to Capture Stills From iSight Camera
Update: now compiled as an Universal Binary for Mac OS X 10.4 Tiger
Recently got an iSight camera and could not find a CLI capture utility around. Nobody ever needed or wrote this before ? Most unlikely. Anyway, here is my version, you may wish to download. Here is how it's being used in a shell:
$ ./isightcapture myimage.jpg"