On Thu, Feb 28, 2013 at 09:55:01AM -0700, Bob Proulx wrote: > Who still remembers when if the exec(2) failed then the shell > examined the first character. If it was a '#' then shell ran the file > through csh. If ':' then through ksh. If neither then sh. This may > have been a local hack though. Clearly the Berkeley #! hack is better.
the other way round :) # was the Berkeley hack implemented in both sh and csh. #! was the Bell Labs hack, but the first systems to implement this outside Bell Labs were running in Berkeley. (I haven't heard of such a ksh hack, yet. Would like to hear more, off-list if you like)
