I am too thick, nothing like getting dirty at command line experimenting. We learn when we have too. Using live distro to pull my music collection from a borked migration. No permission to copy those files? Learn the practical difference between chmod & recursive chown file permissions. By chowning Music folder (BTSync now works) & I was also able to drag all my precious data from an early grave! Learn ppls, learn. Theory often makes no sense, slight diff syntax between Debian based & RPM, but all good.