OUI_LOC is not correctly set.. the path doesn't contain runInstaller or .oui Please s

Dear all,
Greetings!

I have failed to install oracle on centos 6.3, getting OUI_LOC is not correctly set.. I have search web but not getting clue... please suggest me something... Thank you in advance.

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[oracle@cluster2 ~]$ cd /opt/app/database/database/install/
[oracle@cluster2 install]$ ll
total 176
-rwxrwxr-x. 1 oracle oinstall 28 Aug 13 2009 addLangs.sh
-rwxrwxr-x. 1 oracle oinstall 127 Aug 13 2009 addNode.sh
-rwxrwxr-x. 1 oracle oinstall 275 Aug 13 2009 attachHome.sh
-rwxrwxr-x. 1 oracle oinstall 182 Aug 13 2009 detachHome.sh
drwxrwxr-x. 2 oracle oinstall 4096 Mar 3 20:11 images
-rwxrwxr-x. 1 oracle oinstall 15166 Aug 13 2009 lsnodes
-rwxrwxr-x. 1 oracle oinstall 1997 Aug 13 2009 oraparam.ini
-rwxrwxr-x. 1 oracle oinstall 6437 Aug 13 2009 oraparamsilent.ini
drwxrwxr-x. 2 oracle oinstall 4096 Mar 3 20:11 resource
-rwxrwxr-x. 1 oracle oinstall 22033 Aug 13 2009 runSSHSetup.sh
-rwxrwxr-x. 1 oracle oinstall 101448 Aug 13 2009 unzip
[oracle@cluster2 install]$ bash runSSHSetup.sh
OUI_LOC is not correctly set.. the path doesn't contain runInstaller or .oui
Please set OUI_LOC to point to OUI install base and retry.
[oracle@cluster2 install]$
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Thanks n regards,
Jignesh Jethwa.