cathedral
= C =
CDA
cd tilde /C-D til-d*/ vi.
To go home. From the Unix
C-shell and Korn-shell command cd ~, which takes one to
one's $HOME (cd with no arguments happens to do the
same thing). By extension, may be used with other arguments; thus,
over an electronic chat link, cd ~coffee would mean "I'm
going to the coffee machine."
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.