Using TDBLoader in JENA

Question

I'm trying to learn how to use TDBLoader using this example I found:

https://github.com/ijdickinson/jena-tdb-ont-example

However, when trying to run the init-demo script, I keep running into issues https://github.com/ijdickinson/jena-tdb-ont-example/blob/master/src/main/script/init-demo

I'm using cygwin to attempt to run the script, but I keep getting please ensure $Path contains $TDBROOT/bin

I set TDBROOT= C:\Development\apache-jena-2.12.1 And my Path has "%TDBROOT\bin"

I'm really new to using command line and shell scripts, so I'm not at all familiar with how to go about debugging this.

I have my tdbloader in apache-jena-2.12.1\bin , is there a way I can check if this is even working? Or if my path is properly set?

I tried "tdbloader" and "-v tdbloader" in command line and I get "tdbloader" is not recognized...

That's not supposed to happen if my path is set correctly, right?