Shell script to pull out value of tablespace used %age...

Question

Oracle 11gR1 RHEL5
Hi all,
I'm sure there is something out there, but I was wondering if anyone knew an easy way to create a script the will take a value from a sql script and then if is a certain value or greater, then it will email me. So basically I'm trying to figure out how I can get a shell script to read sql output (tablespace free space) and grab let's say any tablespace that is more than 80% full, and then send me an email with the tablespace name. I have some references but just can't seem to figrue out the reading the value part. I'm still kinda new to the shell scripting world...but eager to learn.
Thanks.

Answer 1

Here is what I have so far. I am getting a permission denied error
#!/bin/bash
FILE=freespace.log
DATECMD=/bin/date
FREESPACELOG="${DIR}/freespace.`date '+%Y%m%d-%H:%M:%S'`.log"
DIR=/home/oracle/scripts/bin/free_space/logs
cd /home/oracle/scripts/bin/free_space/
sqlplus -S "/ as sysdba" << EOF > $FREESPACELOG
set lines 300 pages 400
select tbs.tablespace_name,
tot.bytes/1024 total,
tot.bytes/1024-sum(nvl(fre.bytes,0))/1024 used,
sum(nvl(fre.bytes,0))/1024 free,
(1-sum(nvl(fre.bytes,0))/tot.bytes)*100 pct,
decode(
greatest((1-sum(nvl(fre.bytes,0))/tot.bytes)*100, 80),
80, '', '*'
) pct_warn
from dba_free_space fre,
(select tablespace_name, sum(bytes) bytes
from dba_data_files
group by tablespace_name) tot,
dba_tablespaces tbs
where tot.tablespace_name = tbs.tablespace_name
and fre.tablespace_name(+) = tbs.tablespace_name
group by tbs.tablespace_name, tot.bytes/1024, tot.bytes
order by 5, 1;
exit &exit_status
EOF
*./test.sh: line 7: /freespace.20090331-12:46:53.log: Permission denied*
Edited by: JrOraDBA on Mar 31, 2009 12:48 PM