Hi SK, I can think of two ways to identify the agent bit level:-
1. By checking the installer binary that you utilized to install the agent.
For eg:- 64 bit binary will look something like this (smwa-12.52-cr01-linux-x86-64.zip)
where as 32 bit will be (smwa-12.52-cr01-linux.zip)
2. Incase agent is already installed andrunning, but you want to identify its bit level, then the webagent bitlevel will be the same as the apache webserver bitlevel. i.e. if your apache is 32bit, the agent installed is also 32bit, if apache is 64bit then the agent is 64 bit too.
Because as per the PSM 64bit agent is compatible and shall work with only 64bit webserver, similarly 32bit agent with 32bit webserver.
Hope this helps.
-Shrikanth