#!/bin/sh
# Program:      truncate_log
# Purpose:      To the log file for one or more databases
# Author:       Adam Backman
# Date:         06/11/98
#
SCRIPTS=${SCRIPTS-/u3/users/adamb/scripts}
HOSTNAME=`hostname`
LOGLINES=${2-2000}
export SCRIPTS HOSTNAME LOGLINES

case $1 in

all|ALL|All)
for i in `grep $HOSTNAME $SCRIPTS/live/db.registry | cut -s -f 1 -d "|"`
        do
                if [ $i != "#DB" ]
                then
                        . $SCRIPTS/live/read_registry $i

                if [ $? = "0" ] 
                then
                        tail -$LOGLINES $DB_DIR/$DB.lg > $SCRIPTS/tmp/$DB.lg
                        chmod 666 $SCRIPTS/tmp/$DB.lg
                        umask 666
                        mv $SCRIPTS/tmp/$DB.lg $DB_DIR/$DB.lg
                fi
                fi
        done
;;
*)
        . $SCRIPTS/live/read_registry $1

case $? in
2)
        echo "Database $1 is not in database registry"
        exit 1
;;
3)
        echo "Database $1 is on $HOST not on this host"
        exit 1
;;
esac
        tail -$LOGLINES $DB_DIR/$DB.lg > $SCRIPTS/tmp/$DB.lg
        chmod 666 $SCRIPTS/tmp/$DB.lg
        umask 666
        mv $SCRIPTS/tmp/$DB.lg $DB_DIR/$DB.lg
;;
esac