iflink - Returns whether or not the system has a network link
Checks whether or not the system has a network hardware link. Status
is returned via STDOUT and return value, 0 for no, 1 for yes.
Written by Sun Microsystems. Modified by Jeff Walter
Report bugs to <firstname.lastname@example.org>.
Copyright © 2002 Sun Microsystems, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope that
it will be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
the GNU General Public License for more details.
iflinkstatus(8), lcd-flash(8), lcd-getip(8), lcd-setcursor(8), lcd-
swrite(8), lcd-write(8), lcd-yesno(8), readbutton(8),