If you are looking for generic commands of this type, there are none. All of the major brands of UNIX are "proprietary" that means that they have altered UNIX just enough to make "their own". And this is the case with swap and memory.
Tru64 has a command "meminfo". HP does not. HP has a command "swapinfo" and I am sure that Tru64 doesn't. You will need to look in the "bin directories"
/bin
/sbin
/usr/bin
/usr/sbin
/usr/local/bin
Please see my response in this post.
https://www.unix.com/showthread.php?s...&highlight=bin
As a result, a few commands are unique to each flavor of UNIX.
Most flavors of unix are quite similar, all major brands have the generic backup tools like tar, cpio & dd.
You will also find that there are some filesystem differences as well as device configuration and naming conventions.