Retrieving installed memory on host system via SQL

Question

A spart of an SQL based report I am writing, I should like to obtain the installed memory on the host machine (which Oracle is running on) to aid memory allocation issues.
Is this value held withing an Oracle table or, if not, is it available from other methods? I am not sure if I could use an os command to retrieve the value.
The host is AIX (Unix)
DB is Oracle 9.2
Many thanks

Answer 1

Thank you very much, that worked.
Using host lsattr -E -l sys0 -a realmem | awk '{ print $2 }'
I obtain my actual value.
However, I need to be able to return it via a SQL select statement, since I am using a ADO method to run a single SQL statement and return a single value.
Can this be done, do you know?
Many thanks