Hello Megalingam,
Are you after any specific flavor of UNIX?
Please try:
# grep "CA Workload Automation Agent" /var/.com.zerog.registry.xml
<product name="CA Workload Automation Agent R11.3 SP4" id="026e062a-1ed8-11b2-b541-b43c47352144" version="11.3.4.0" copyright="2014" info_url="" support_url="" location="/opt/CA/WA_Agent_R11_3_4" last_modified="2016-03-10 15:10:10">
Cheers,
Chandru