Oracle Instant Client on Linux

download from:

http://www.oracle.com/technetwork/database/features/instant-client/index-100365.html

or more specifically

http://www.oracle.com/technetwork/topics/linuxx86-64soft-092277.html

download the RPM version

oracle-instantclient11.2-basic-11.2.0.3.0-1.x86_64.rpm

rpm -i oracle-instantclient11.2-basic-11.2.0.3.0-1.x86_64.rpm
error: can't create transaction lock on /var/lib/rpm/__db.000

need to be root