31 Dec
2022
31 Dec
'22
1:51 a.m.
On 12/30/22 1:25 PM, Paul Ruizendaal wrote:
London and Reiser report about porting the shell that “it required by far the largest
conversion effort of any supposedly portable program, for the simple reason that it is not
portable.” By the time of SysIII this is greatly improved, but also in porting the SysIII
user land it was the most complex of the set so far.
Have you read
http://www.collyer.net/who/geoff/sh.tour.pdf
and looked at http://www.collyer.net/who/geoff/v7sh.tar ?
In the limited literature on Bourne Shell porting, this is authoritative.
Arnold Robbins built on that work and ported the v8-v10 shells to modern
Linux versions. (I am sorry, I do not have a link right now.)
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet(a)case.edu http://tiswww.cwru.edu/~chet/