unixism

unixism n.  A piece of code or a coding technique that
   depends on the protected multi-tasking environment with relatively
   low process-spawn overhead that exists on virtual-memory UNIX
   systems.  Common {unixism}s include: gratuitous use of
   `fork(2)'; the assumption that certain undocumented but
   well-known features of UNIX libraries such as `stdio(3)' are
   supported elsewhere; reliance on {obscure} side-effects of
   system calls (use of `sleep(2)' with a 0 argument to clue the
   scheduler that you're willing to give up your time-slice, for
   example); the assumption that freshly allocated memory is zeroed;
   and the assumption that fragmentation problems won't arise from
   never `free()'ing memory.  Compare {vaxocentrism}; see also
   {New Jersey}.