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#!/bin/bash
# Copyright 2012 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
CUTOFF=40
STATUSDIR=/var/cache/dsa/nagios
STATUS="${STATUSDIR}"/nouser
mkdir -p "${STATUSDIR}"
tmp=`tempfile`
trap "rm -f '$tmp'" exit
if command -v ionice >/dev/null 2>&1; then
prefix="ionice -c 3 -t" # idle priority, ignore errors
fi
$prefix find / -ignore_readdir_race \( -fstype proc -o -fstype sysfs -o -fstype fdescfs -o -fstype autofs -o -fstype nfs4 \) -prune -o \( -nouser -print \) | head -n "$CUTOFF" > "$tmp"
if [ -s "$tmp" ]; then
echo "WARN"
c="$(wc -l < "$tmp")"
if [ "$c" -lt "$CUTOFF" ] ; then
echo "Warn: $c unowned files on system."
cat "$tmp"
else
echo "Warn: Lots of unowned files on system:"
cat "$tmp"
echo "..."
fi
else
echo "OK"
echo "OK: No unowned files on system."
fi > "$STATUS"
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