Phoon displays the phase of the moon, either currently or at a specified date / time. Unlike other such programs, which just tell you how long since first quarter or something like that, phoon shows you the phase with a cute little picture. You can vary the size of the picture with the -l flag, but only some sizes have pictures defined - other sizes use @'s.
Sample output (HTMLized via texttohtml):
.--- .--' .-' .-'@ /@@@ @ ./ o /@@ o /@@@@ . |@@@@@ /@@@@@ O Last Quarter + | @@@@ 3 15:06:49 |@ @@@ New Moon - | @ 3 18:47:37 \ . @ | @ \ @@@ \ o @@ `\ . \ `-. o `-. `--. `---
See also: bigcal, globe, xphoon.
ACME Labs / Software / phoon