how to get WSL UNIX commands without sysadmin rights

On Windows 10 you cant install WSL without sysadmin rights so you have to use CYGWIN instead

Can I install Cygwin without administrator rights?
Yes. The default installation requests administrator rights because this allows to set up the Cygwin environment so that all users can start a Cygwin shell out of the box.
However, if you don’t have administrator rights for your machine, and the admins don’t want to install it for you, you can install Cygwin just for yourself by downloading setup-x86.exe (for a 32 bit install) or setup-x86_64.exe (for a 64 bit install) and then start it from the command line or via the “Run…” dialog from the start menu using the –no-admin option, for instance:
#  setup-x86.exe --no-admin