steps to install DDboost on AIX server

Here is the list of steps to install DDboost on AIX server.
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assumption we had already installed oracle software binaries on the target server and down load the DDBoost  and move to server.
untar the requested files.

rw-rw-r--    1 oracle   dba         5580800 Mar 06 2014  RMAN_1.1.1.3-415543_RMAN_aix_64.tar
(server_name:oracle)/oracle/ddboost>./install.sh
ksh: ./install.sh:  not found.
(server_name:oracle)/oracle/ddboost>install.sh
ksh: install.sh:  not found.
(server_name:oracle)/oracle/ddboost>sh install.sh
Installing the Data Domain plugin for RMAN ...
Copying libraries to /oracle/product/11gR2_3/lib
cp libddobk.so /oracle/product/11gR2_3/lib/libddobk.so
cp libDDBoost.so /oracle/product/11gR2_3/lib/libDDBoost.so
Successfully installed the Data Domain plugin for RMAN