On Thu, Mar 5, 2020 at 2:51 PM Dave Horsfall wrote: > On Wed, 4 Mar 2020, Ken Thompson via TUHS wrote: > > > do i get a prize: > > ls -tj > > /bin/ls: illegal option -- j > > usage: ls [-ABCFGHLOPRSTUWabcdefghiklmnopqrstuwx1] [file ...] > > Another candidate for option-cleansing... Interesting; I get different > options with the Mac and FreeBSD: > > Mac: > > usage: ls [-ABCFGHLOPRSTUWabcdefghiklmnopqrstuwx1] [file ...] > > FreeBSD: > > usage: ls [-ABCFGHILPRSTUWZabcdfghiklmnopqrstuwxy1,] [-D format] > [file ...] > > So FreeBSD has added up "y,D:" (in getopt(3)-speak); my eyes are burning... > FreeBSD wouldn't need -, if there were a good filter to add , to large numbers... Some of the proliferation of options has been due to a lack of proper building-blocks.... Warner