Who locked the file in RTC shell client
Accepted answer
I was not able to do that. I tried in 5.0 and failed to see who had locked the file. You might want to create an enhancement request.
Comments
I have found https://jazz.net/jazz/web/projects/Rational%20Team%20Concert#action=com.ibm.team.workitem.viewWorkItem&id=251419 and the enhancement is not planned, but some progress seems to have been made. This change is very recent. It is not planned for any release yet.