Call (800) 766-1884 for Oracle support & training
Free Oracle Tips

Oracle Consulting Support
Oracle Upgrades
Use New Oracle Features
Oracle Replication Support
Oracle Training
Remote Oracle DBA
System Documentation
Oracle Tips
Oracle Performance

Free Oracle Tips



BC Oracle tuning

Oracle training

Oracle support

Remote Oracle




Oracle Tips by Burleson Consulting

Delete all old Oracle trace and audit files more than 14 days old

Here is an example of a UNIX script for keeping the archived redo log directory free of elderly files. As we know, it is important to keep room in this directory, because Oracle may “lock-up” if he cannot write a current redo log to the archived redo log filesystem. This script could be used in coordination with Oracle Recovery Manager (rman) to only remove files after a full backup has been taken.


# Cleanup archive logs more than 7 days old
find /u01/app/oracle/admin/mysid/arch/arch_mysid*.arc -ctime +7 -exec rm {}

Now that we see how to do the cleanup for an individual directory, we can easily expand this approach to loop through every Oracle database name on the server (by using the oratab file), and remove the files from each directory. If you are using Solaris the oratab is located in /var/opt/oratab while HP/UX and AIX have the oratab file in the /etc directory.


for ORACLE_SID in `cat /etc/oratab|egrep ':N|:Y'|grep -v \*|cut -f1 -d':'`
ORACLE_HOME=`cat /etc/oratab|grep ^$ORACLE_SID:|cut -d":" -f2`
DBA=`echo $ORACLE_HOME | sed -e 's:/product/.*::g'`/admin
find $DBA/$ORACLE_SID/bdump -name \*.trc -mtime +14 -exec rm {} \;
$DBA/$ORACLE_SID/udump -name \*.trc -mtime +14 -exec rm {} \;
find $ORACLE_HOME/rdbms/audit -name \*.aud -mtime +14 -exec rm {} \;

The above script loops through each database, visiting the bdump, udump and audit directories, removing all files more than 2 weeks old.

The above is an excerpt from the "Oracle UNIX Administration Handbook" by Oracle press, authored by Donald K. Burleson.


Download your Oracle scripts now:

The definitive Oracle Script collection for every Oracle professional DBA




Oracle performance tuning software 

Oracle performance tuning book


Oracle performance Tuning 10g reference poster
Oracle training in Linux commands
Oracle training Excel
Oracle training & performance tuning books



Copyright © 1996 -  2014 by Burleson. All rights reserved.

Oracle® is the registered trademark of Oracle Corporation. 

Hit Counter