zopen provides lots of Unix-like packages on z/OS. Its home page says

The zopen community is here to provide popular Open Source tools and to encourage z/OS Open Source tools development. We currently host 200+ z/OS Open Source projects and we’re looking for more!

I wanted to install some packages to make my SSH shell on z/OS look like the Linux shell I know and love. This was easy, but not entirely straight forward.

You can list all the packages available using

zopen query –list

This takes several minutes, as it has to contact each site in a list using https.

Install less

less pages through the content of a file.

I used

zopen install less

Once I had installed it and tried to use it, I got

WARNING: terminal is not fully functional
Press RETURN to continue 

I had to install ncurses, a programming library for creating textual user interfaces (TUIs) that work across a wide variety of terminals.

zopen install ncurses

and it worked.