shuf
shuf [OPTION]... [FILE] -e [OPTION]... [ARG]... -i LO-HI [OPTION]...
shuf writes a random permutation of the input lines to standard output.
Not something you would use a lot, but provides a nice elegant solution when you need a random list.
Examples
Create a random list of videos
# Get a list of videos $ find $DIR -name '*.AVI' -print > $VIDLIST # Shuffle them $ shuf $VIDLIST > $RANDLIST