The man page says this "The flags field is an octal number that displays the file access mode and file status flags (see open(2))." flags may also include the file descriptor flags (F_GETFD). (Although there is only the O_CLOEXEC flag and that is explicitly included [1]) [1] https://github.com/torvalds/linux/blob/master/fs/proc/fd.c#L41-L43 -- Patrick Donnelly -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html