Getting blynk to work via usb serial

I’ve been trying for hrs and I still get “Sudo: ./ command not found” no matter what I do. I’ve installed brew and done all the steps. I followed some troubleshoot steps after reading simular topics and now I get the response below. Please help…

Filthy@Roys-MBP-3 scripts % ./
./ line 24: This: command not found
./ line 26: You: command not found
./ line 27: syntax error near unexpected token newline' ./ line 27: -c -b -s -p ’
Filthy@Roys-MBP-3 scripts %