I do not like Unix's fossilization
I like Unix, but I'm not entirely happy with the modern world of Unix, and not for the reason you might expect. Instead of disliking the changes from the old days, I find it distressing to see Unix slowly fossilize.
Unix should be picking up new good ideas. It should be adopting better
ways of writing shell scripts, adding more little programs,
and all of that. Yes, things like
seq and (GNU)
stat and (GNU)
time are not in the Posix specification and all that, but
they're useful and I think that they're in the Unix spirit. That they
are so strongly resisted makes me sad.
(I'll grumpily note that traditional Unix is really short of good
ways for shell scripts to extract various sorts of information about
things around them in ways that are easily usable by shell scripts.
Yes, you can sort of parse '
ls -l' output and the like, but you
shouldn't have to;
ls -l is designed for human consumption, not
for shell scripts.)
You can argue about whether these new ideas are strongly resisted,
but I think that they are. Linux distributions adopt them fairly
widely, but then they don't tend to migrate to FreeBSD, OpenBSD, and
so on, and Solaris and AIX are of course more or less completely
hopeless; most of the people running Solaris now don't want any
changes, and Sun is happy to oblige. On the
other hand, OpenBSD has been fairly successful at introducing commands
to make shell scripting more secure and getting them widely adopted (eg,
mktemp), so maybe there is some hope.
(One argument is that many of the things that aren't propagating are GNU tools, which have both licensing and cultural issues as roadblocks. OpenBSD has easier licensing for everyone to adopt, and people who care about this probably tend to feel culturally closer to it.)