+ Create a new folder under /usr called client or something

+ Download the following files
Instant Client Package - Basic
Instant Client Package - SQL*Plus
Instant Client Package - SDK

+ Extract all 3 zip files to the new folder /usr/client (copy all files from instantclient_10_2 to client)

+ Create a new file in the folder /usr/client called tnsnames.ora

add the TNS entries in the format’

server.address.com =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server.address.com)(PORT = 1521))
) (CONNECT_DATA =
(SID = server)
) )

+ In the folder /usr/client create a folder called bin and create a link to the file sqlplus in bin

+ In the folder /usr/client create a link libclntsh.so to the file libclntsh.so.10.1

+ In the file /etc/ld.so.conf add /usr/client

+ run ldconfig