I am very new to this platform, after starting webrick my terminal not allowing me to enter command, is there any clue for it?
Probably if you started your webrick, your server is now running and listening on http://localhost:3000
. To see it, simply open a browser and point to that address.
If you want to stop the server (and enter other commands) as you seem to want to do, press ctrl + c
to kill the server