How to find which version of Oracle is installed on a Linux server In terminal

Question

I am in terminal in Redhat 5 5 and I need to find out which version of Oracle is installed  I am pretty new at Linux  but I have searched Google for a while and I can t find what I need  I have to locate which version is installed via terminal  I found the Oracle files  but I can t seem to find the version

User · Answer

A bit manual searching but its an alternative way...
Find the Oracle home or where the installation files for Oracle is installed on your linux server.

cd / <-- Goto root directory
find . -print| grep -i dbm*.sql

Result varies on how you installed Oracle but mine displays this

/db/oracle

Goto the folder

less /db/oracle/db1/sqlplus/doc/README.htm

scroll down and you should see something like this

SQL*Plus Release Notes - Release 11.2.0.2

User · Answer

Login as sys user in sql plus  Then do this query    select   from v version     or  select   from product component version

User · Answer

Enter in sqlplus  you ll see the version number      su - oracle  oracle  sqlplus   OR  echo  ORAHOME   Will give you the path where Oracle installed and path will include version number   OR  Connect to Oracle DB and run  select   from v version where banner like  oracle

User · Answer

As the user running the Oracle Database one can also try  ORACLE HOME OPatch opatch lsinventory which shows the exact version and patches installed   For example this is a quick oneliner which should only return the version number    ORACLE HOME OPatch opatch lsinventory   awk    Oracle Database   print  NF

User · Answer

As A B Cada pointed out  you can query the database itself with sqlplus for the db version   That is the easiest way to findout what is the version of the db that is actively running   If there is more than one you will have to set the oracle sid appropriately and run the query against each instance   You can view  etc oratab file to see what instance and what db home is used per instance   Its possible to have multiple version of oracle installed per server as well as multiple instances   The  etc oratab file will list all instances and db home   From with the oracle db home you can run  opatch lsinventory  to find out what exaction version of the db is installed as well as any patches applied to that db installation

User · Answer

you can also check by   ps -ef  grep -i ora

User · Answer

I solved this in about 1 minute by just reading the startup script  in my case  etc init d oracle-xe       less  etc init d oracle-xe   At almost the beginning of the file I found      ORACLE HOME  PATH TO INSTALLATION INCLUDING VERSION NUMBER    This was the quickest solution for me because I knew where the script was located  and that it is used for starting restarting the server   Of course  this relies on that the version number actually corresponds to the actual server version  which it should for a correctly installed instance

[linux] How to find which version of Oracle is installed on a Linux server (In terminal)

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