wxCam is a webcam application for Linux. It supports video recording (in an uncompressed AVI format or Xvid format), snapshot taking, and some special commands for Philips webcams, so you can also use the program for astronomy purposes. It supports both video4linux 1 and 2 drivers.
xoris grabs the RGB color value of any pixel on the screen and dumps the color's name to stdout. The output can be printed either as hex (#b0958e), as a triple of decimal RGB values (229 229 229), or as an abstract name (gray90). xoris has only been tested on displays with a bit depth of 24 bpp.