#!/bin/sh
#
# This program rolls over old log files and creates new ones.
#
# The program loops through the list of files used by syslog, copies
# the old data to a date and time stamped file, then truncates the 
# active log file.
#
# This program supports one command line option "-compress" or "-nocompress",
# which controls whether or not the program compresses the archived log 
# file.  The default behavior is controlled by the COMPRESS variable at the
# start of the program.
#
# Andy Welter 9/23/98
# www.the-welters.com
#
COMPRESS="yes"
USAGE="logroll [-compress|-nocompress]"
LOGDIR=/var/adm/syslog
FILES="auth.log daemon.log kern.log user.log syslog.log local0.log messages" 
DATE=`date +"%y%m%d"`

case $1 in 
"-compress") COMPRESS=yes
	;;
"-nocompress") COMPRESS=no
	;;
*) echo $USAGE
	exit 1
	;;
esac

for F in $FILES; do
	FF="${LOGDIR}/${F}"
	if [ -f $FF ]; then	
		while [ -f ${FF}.${DATE} ]; do
			DATE=`date +"%y%m%d.%H%M%S"`
		done
		cp -p $FF $FF.$DATE
		chgrp adm $FF.$DATE
		chmod 660 $FF.$DATE
		if [ "$COMPRESS" = "yes" ]; then
			/usr/bin/compress $FF.$DATE
		fi
	fi
	cat /dev/null > $FF
	chgrp adm $FF
	chmod 660 $FF
done