hello, world

hello, world interj.  1. The canonical minimal test message
   in the C/UNIX universe.  2. Any of the minimal programs that emit
   this message.  Traditionally, the first program a C coder is
   supposed to write in a new environment is one that just prints
   "hello, world" to standard output (and indeed it is the first
   example program in {K&R}).  Environments that generate an
   unreasonably large executable for this trivial test or which
   require a {hairy} compiler-linker invocation to generate it are
   considered to {lose} (see {X}).  3. Greeting uttered by a
   hacker making an entrance or requesting information from anyone
   present.  "Hello, world!  Is the {VAX} back up yet?"