Steps to check OHS version

Locate to the below location

/u01/Middleware_WT/Oracle_WT1/ohs/bin

Export the below path

export LD_LIBRARY_PATH=/u01/Middleware_WT/Oracle_WT1/lib

Now run the below command

[oracle@arihant bin]$ ./httpd -version
Server version: Oracle-HTTP-Server/2.2.22 (Unix)
Server built:   Aug 20 2015 15:15:27
Server label:   APACHE_11.1.1.7.0_LINUX.X64_RELEASE


Regards,
Arihant