the portability of seq(1) (was: Idea: jobs(1) -i to print only :%ID:s)

[G. Branden Robinson]

At 2023-11-10T10:54:52-0800, Eric Pruitt wrote:
> On Fri, Nov 10, 2023 at 01:22:54PM -0500, Greg Wooledge wrote:
> > It most definitely is *not* everywhere.  It's part of GNU coreutils,
> > and is generally not present on any system that does't use those
> > (BSDs and commercial Unixes for example).
> 
> From _seq(1)_ on FreeBSD:
> 
> > The seq command first appeared in Version 8 AT&T UNIX. A seq command
> > appeared in NetBSD 3.0, and was ported to FreeBSD 9.0. This command
> > was based on the command of the same name in Plan 9 from Bell Labs
> > and the GNU core utilities. The GNU seq command first appeared in
> > the 1.13 shell utilities release.
> 
> From _seq(1)_ on OpenBsd:
> 
> > A seq command appeared in Version 8 AT&T UNIX. This version of seq
> > appeared in NetBSD 3.0 and was ported to OpenBSD 7.1.

That leaves NetBSD (data point requested), and I stumbled into seq's
absence when building groff 1.23.0 release candidates for Solaris 10
(maybe 11 too).

https://git.savannah.gnu.org/cgit/groff.git/tree/HACKING?h=1.23.0#n98

Regards,
Branden

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