#! /bin/sh
LOGDIR=/var/log
LOGFILE='messages syslog'
cd $LOGDIR
for log in $LOGFILE; do
    n=7				# Rotate Number
    rm -f ${log}.$n
    while [ $n -gt 0 ]; do
	n1=`expr $n - 1`
	if [ -f $log.$n1 ]; then
	    mv -f $log.$n1 $log.$n
	fi
	n=$n1
    done
    mv -f $log $log.1
    cat >$log </dev/null
    chmod 640 $log
done

# send SIGHUP signal to syslogd
kill -HUP `cat /var/run/syslogd.pid`