#!/bin/sh
#
# system check script
#

PATH=/usr/sbin:/usr/bin:/bin ; export PATH
LANG=ja_jp.eucJP ; export LANG

SPOOL=/var/spool/mail/
MAILCMD=/usr/bin/mail
NKFCMD=/usr/bin/nkf
HOMEDIR=/home
MAILMASTER=postmaster
HOSTNAME=`hostname`

( echo "HOSTNAME: $HOSTNAME"
echo "This machine is running in ..."
uptime
echo ""
echo "--- Error report from syslog ---"
grep -i error /var/log/syslog
echo "--- Error report end ---"
echo ""
echo "--- Error report from message log ---"
grep -i error /var/log/messages
echo "--- Error report end ---"
echo ""
echo "--- Files modified in one day in /etc ---"
find /etc -ctime -1 -print
echo "--- Files modified end ---"
echo ""
echo "--- Disk usage ---"
df -h
echo "--- Disk usage end ---"
echo ""
echo "--- Home directory eater ---"
du -s -b -h $HOMEDIR/* | sort -rn | head -5
echo "--- Home directory eater end ---"
echo ""
echo "--- Mail spool directory size  ---"
du -s -b -h $SPOOL
echo "--- Mail spool directory size end ---"
echo ""
echo "--- Mail spool eater ---"
ls -l $SPOOL | sort -rn +4 | head -5
echo "--- Mail spool eater end ---"
echo ""
echo "") | $NKFCMD -j | $MAILCMD -s "Daily status of $HOSTNAME" $MAILMASTER