Re: is hard-coding the group name, "tty", portable enough for who -a?

[Jim Meyering]

"James Youngman" <address@hidden> wrote:
> How about just comparing the GID of the other user's terminal against
> the GID of the terminal whose name would have been printed if we'd run
> "tty"?

Thanks, but in http://bugzilla.redhat.com/454261,
the example shows that a user in the "mesg n" state
has the group of their "tty" device set to "root".
That would make who -a's indicator vary depending
upon the user/tty running it.