Could it be that the /usr/local/bin directory doesn’t exist? If that’s the case, you’d either have to create it or replace that part of the command with some other directory in your $PATH (make sure to change both occurrences in the command if you decide to go with this latter option). Though I must add that this kind of manual install isn’t great if you want to keep track of installed apps and pending updates, since you’d have to do all of that manually too.