#!/bin/sh
#
# Program: Logfile rotation utility <logrotate.sh>
#
# Author: Matty <matty91 at gmail dot com>
#
# Current Version: 1.0
#
# Revision History:
#
# Version 1.0
#     Original release
#
# Last Updated: 10-09-2005
#
# Purpose: 
#   This script will rotate the logfiles listed in the LOG variable. COUNT vopies
#   will be maintained.
#

# Set some global environment variables
PATH=/bin:/usr/bin:/usr/ucb ; export PATH

# Trap signals sent when we are moving files so we don't get interrupted
trap '' 0 1 2 3 9 15

# GLOBAL VARIABLES
COUNT=10
LOGS="/var/adm/messages /var/log/syslog /var/log/maillog /var/log/openldap"
STOPVALUE=0

# LOOP till no more logs
for i in ${LOGS}
do
        # Reset the indice
        INDICE=${COUNT}
        while [ ${INDICE} -ge ${STOPVALUE} ]
        do
                # Add one to the present index
                PLUSONE=`expr ${INDICE} + 1`

                # if the logfile exists move it to LOG.INDEX + 1
                test -f ${i}.${INDICE} && mv ${i}.${INDICE} ${i}.${PLUSONE}

                # Increment the index
                INDICE=`expr $INDICE - 1`
        done

        # Move the logfile to logfile.COUNT 
        mv ${i} ${i}.${STOPVALUE}

        # zero out the logfile ( NEW LOGFILE )
        cp /dev/null ${i}
        chmod 644 ${i}
done

# Restart syslog
/etc/init.d/syslog stop && /etc/init.d/syslog start