#!/bin/bash
#
# Copyright (c) 2017 Mathieu Roy <yeupou--gnu.org>
#                   http://yeupou.wordpress.com
#
#   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 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, write to the Free Software
#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
#   USA

# fast and simple check for root partition free space

# limit in %
THRESHOLD="82" 

# evaluate usage using GNU df
USAGE=`df / --output=pcent  | tail -1 | sed 's/[^0-9]//g'`

if (($USAGE > $THRESHOLD)); then echo "/ partition usage on $(hostname -f) reached $USAGE%"; fi

# EOF
