Where is kusuenv.sh script?

Issue

Following instructions in the installation manual,

 # source /etc/profile.d/kusuenv.sh

an error returns as /etc/profile.d/kusuenv.sh is not found.

[Reference - Installation Guide]

http://docs.redhat.com/docs/en-US/Red_Hat_HPC_Solution/5.2/html/Installation_Guide/sect-Installation_Guide-Installation_Procedure-Starting_the_Install.html