"Modern" sh (was Math routines)

[John Macdonald]

In article <4011 at auspex.auspex.com> guy at auspex.auspex.com (Guy Harris) writes:
|>It depends on when the last time you installed the system.  If it was
|>1979 or such, then your shell probably doesn't understand # comments
|>(I don't remember whether it was in the v7 shell, or not).
|
|"#" comments weren't in the V7 shell.  They are the 4.2BSD shell, and
|later BSD shells, and I think they were in the 4.1BSD shell as well;
|Berkeley added "#" comments to their otherwise V7-based shell. 

SCO (or Microsoft) supported "#" comments in System III, I don't recall
whether it did in V7.
-- 
Algol 60 was an improvment on most           | John Macdonald
of its successors - C.A.R. Hoare             |   jmm at eci386