Trying to open plist file to read ShadowHashData but keep getting an error ("the domain/default pair... does not exist")

I am trying to run a command to try and look at a plist file on my computer, so I type this into terminal: cd /Volumes/"Macintosh HD" and then sudo defaults read /var/db/dslocal/nodes/Default/users/.plist ShadowHashData However, whenever I do this, I get this result: The domain/default pair of (/var/db/dslocal/nodes/Default/users/.plist, ShadowHashData) does not exist This might be a simple question, but I really want to run this command and I don't know how why the command doesn't work. I'd really appreciate some help.