I'm not really familiar with ksh, but in bash, "type" shows these kinds of details, and ksh appears to have something similar:
$ type /usr/xpg4/bin/rm /usr/xpg4/bin/rm is a shell builtin $ PATH="/usr/xpg4/bin:$PATH" $ type rm rm is a shell builtin version of /usr/xpg4/bin/rm Tim On Mon, Jun 17, 2019 at 9:45 AM James <[email protected]> wrote: > On 17/06/2019 13:22, Peter Tribble wrote: > > >> $ PATH=/usr/xpg4/bin /bin/ksh -c "rm -f" > >> Usage: rm [-cFdfirRuv] file ... > >> ... > >> $ PATH=/usr/xpg4/bin /bin/truss -f /bin/ksh -c "rm -f" |& grep rm > >> 4436: lstat("/usr/xpg4/bin/rm", 0xFFFFFC7FFFDFDCE0) = 0 > >> Usage: rm [-cFdfirRuv] file ... > >> ... > >> > > I can't see a built-in rm or alias in ksh and if it were I would expect > >> -f to have the same effect. The path must be making ksh act > >> differently. What am I not understanding here? > >> > > In ksh, /usr/xpg4/bin/rm is a builtin. > > > > % ksh builtin | grep /rm > > /bin/rmdir > > /usr/ast/bin/rm > > /usr/ast/bin/rmdir > > /usr/xpg4/bin/rm > > I see, thank you for guiding me. I was checking with which and whence > > $ zsh > $ which rm > /usr/xpg4/bin/rm > $ which [ > [: shell built-in command > $ which which > which: shell built-in command > > $ ksh > $ which rm > /usr/xpg4/bin/rm <- no mention of builtin > $ which which > /bin/which <- could be because which is not builtin > $ builtin | grep wh > whence > $ whence rm <- try the builtin whence > > /usr/xpg4/bin/rm <- no mention of builtin > > ksh does not report like zsh. > > The man page does not document it and I expect the built in rm to follow > what it is substituting, (possibly we discover /usr/xpg4/bin/rm has been > in error for 25 years). > > This causes autoconf/configure to fail when it checks rm (checking punch > tape reader LUN, checking for UNIVAC 18 bit words) > > I've had xpg4 in my path for so long I've forgotten if it's still needed. > > > > > > > > > > > _______________________________________________ > openindiana-discuss mailing list > [email protected] > https://openindiana.org/mailman/listinfo/openindiana-discuss > _______________________________________________ openindiana-discuss mailing list [email protected] https://openindiana.org/mailman/listinfo/openindiana-discuss
