Ron <ronljohnsonjr(at)gmail(dot)com> writes:
> Thanks. postgresql-9.6.24-1-linux-x64-binaries.tar.gz doesn't seem to have
> amcheck, though.
amcheck was not part of the Postgres source tree until v10.
It might exist in some form for 9.6, but you'd have to look
outside the standard distribution channels - maybe github? -
and very likely compile from source.
regards, tom lane