[TUHS] A few comments on porting the Bourne shell

Chet Ramey chet.ramey at case.edu
Sat Dec 31 05:51:26 AEST 2022


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 at case.edu    http://tiswww.cwru.edu/~chet/



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