pqsave command not found

[FegDotExe]

Hi. I have built the latest version (today's 6th July 2018) for mac using "dotnet build -f netcoreapp2.0", I got the PqSave.dll file and it seems to work fine when I launch it by "dotnet PqSave.dll", but the output I get is:
"
Usage: pqsave mode input output [script1 (In script mode only)] [script2]...
modes:
d Decrypt save
e Encrypt save
x Export save to JSON
i Import save from JSON
s Script - Run scripts on an encrypted save
"
I don't get where I should give that input, in which format, how... Basically, I really don't get what to do next... Hopefully you'll be able to help me... Thank you