On 1/8/19 7:59 PM, Robert Elz wrote:
> It was how they moved to sh that I don't know the history of, as (being
> a BSD user, whcih never really moved from the 7th edn Bourne sh as
> its /bin/sh until licensing issues caused ash to appear, I never
> really followed what was happing in the non-BSD world).
The Korn shell. And it was that implementation that made them simple
string substitutions, with re-scanning after substitution. POSIX
picked them up from ksh88.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
