How to connect transmission NT by commandline

I have installed transmission NT from app.

Then it works ,but I woud like to controle this application by termina;.

I googled around and found I have to use transmission-remote or transmission-cli.

I found there is some files in this directory.

/apps/nastools-transmission/bin

drwxr-xr-x 1 root root    180 Mar  1 11:48 ..

-rwxr-xr-x 1 root root 510608 Apr  9  2016 transmission-cli

-rwxr-xr-x 1 root root 510960 Apr  9  2016 transmission-create

-rwxr-xr-x 1 root root 527056 Apr  9  2016 transmission-daemon

-rwxr-xr-x 1 root root 506800 Apr  9  2016 transmission-edit

-rwxr-xr-x 1 root root 547536 Apr  9  2016 transmission-remote

-rwxr-xr-x 1 root root 510864 Apr  9  2016 transmission-show

However if I do 

./transmission-remote --debug -l

posting:

--------

{"arguments":{"fields":["error","errorString","eta","id","isFinished","leftUntilDone","name","peersGettingFromUs","peersSendingToUs","rateDownload","rateUpload","sizeWhenDone","status","uploadRatio"]},"method":"torrent-get","tag":4}

--------

* Couldn't find host localhost in the .netrc file; using defaults

*   Trying ::1...

* TCP_NODELAY set

* connect to ::1 port 9091 failed: Connection refused

*   Trying 127.0.0.1...

* TCP_NODELAY set

* connect to 127.0.0.1 port 9091 failed: Connection refused

* Failed to connect to localhost port 9091: Connection refused

* Closing connection 0

[2017-03-05 04:25:05.678] transmission-remote:  (http://localhost:9091/transmission/rpc/) Couldn't connect to server

I can't connect to the server.

I tries to access (http://localhost:9091/transmission/rpc/) but in vain.

Honestly speaking , I am not sure how to controll transmission.

This quesion might be stupid. I would like to know the first step of connecting transmission by terminal or some script.