For fun, I'm writing a Swift command line tool for macOS. I want to pass in an argument like "foo.txt", which would be a text file in the current directory. I'm unclear on how the app will know what directory the shell is currently in. How do you pass the current directory to the command line apps implicity so the user does not have to specify them?

I think FileManager.currentDirectoryPath is what you are looking for.

Thank you, David. I tested it and you are correct!

I disregarded currentDirectoryPath initially because the documentation says: "The path to the program’s current directory."

If I'd read the full docs, I'd have seen the warning: "This property reports the current working directory for the current process, not just the receiver."

Which is exactly what I wanted, thanks again!