aredn/files/usr/local/bin/linkled

#!/bin/sh
<<'LICENSE'
  Part of AREDN -- Used for creating Amateur Radio Emergency Data Networks
  Copyright (C) 2015 Conrad Lara
   See Contributors file for additional contributors

  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 version 3 of the License.

  This program 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.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

LICENSE

LINK1LED=`readlink -f /sys/class/leds/*link1`

{
  while true; do
    sleep 5;
    if echo /neighbors | nc 127.0.0.1 2006 2>/dev/null | grep -q YES; then
      echo 1 > $LINK1LED/brightness
    else
      echo 0 > $LINK1LED//brightness
    fi
  done;
} &