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#!/bin/bash
# Copyright (C) 2016 Mike Gabriel
#
# File: check_fs_ro.sh
# Author: Mike Gabriel
# Date: 06 Sep 2016
# Version: 0.11
# LICENSE: MIT/Expat
set -f
shopt -u extglob
# Program args
ME="$0"
CMDLINE="$@"
NAGOK=0
NAGWARN=1
NAGCRIT=2
NAGUNKN=3
usage()
{
echo "Check that ext[2|3|4], btrfs or xfs filesystems are not read-only."
}
parse_options()
{
local new
set -- $CMDLINE
while true
do
case $1 in
#-v) shift ; gVersion=$1
#;;
-h) usage ; exit 0
;;
?*) echo "Syntax error." ; exit 1
;;
esac
shift 1 || break
done
}
main()
{
parse_options
retval=$NAGOK
grep -E '^.*\ .*\ (ext.*|btrfs|xfs)\ ro,.*$' /proc/mounts | while read fs; do
rofs=`echo $fs | awk '{ print $2; }'`
echo "CRITICAL: $rofs is a read-only filesystem."
done
if ! grep -E '^.*\ .*\ (ext.*|btrfs|xfs)\ ro,.*$' /proc/mounts 1>/dev/null; then
echo "OK."
else
retval=$NAGCRIT
fi
exit $retval
}
main
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