trace files deletion script for oracle

House keeping script to delete trace files  and xml files older than 5 days.
It reads database names from oratab and delete trace files from all the databases listed in /etc/oratab.

#!/bin/bash
DB_LIST=`egrep -i ":Y|:N" /etc/oratab | cut -d":" -f1 | grep -v "\#" | grep -v "\*"`
for i in $DB_LIST ; do
export ORACLE_SID=$i
export ORACLE_HOME=`egrep -i ":Y|:N" /etc/oratab |grep $ORACLE_SID| cut -d":" -f2 | grep -v "\#" | grep -v "\*"`
export PATH=$ORACLE_HOME/bin:$PATH
TRACE_LOC=`sqlplus -s "/ as sysdba" <<EOF
       set heading off feedback off verify off
       select VALUE from v\\$diag_info where NAME='Diag Trace';
       exit
EOF`
find $TRACE_LOC -name '*.trc' -mtime +5 -exec rm -f {} \;
find $TRACE_LOC -name '*.trm' -mtime +5 -exec rm -f {} \;
ALXML_LOC=`sqlplus -s "/ as sysdba" <<EOF
       set heading off feedback off verify off
       select VALUE from v\\$diag_info where NAME='Diag Alert';
       exit
EOF`
find $ALXML_LOC -name 'log_*' -mtime +5 -exec rm -f {} \;
done