Today I had to merge main branch files to a private branch. The reason was that people was updating the main branch and private branch was having many issues. However, when it came to updating files in private branch, I could not find which are the files that were branched out. This forced me to refresh some old commands of clearcase. I used a simple find to get a list of all files which were on a private branch.
cleartool find ./ -element "brtype(Private_branch)" -print
Let me also post some sites from where you can get some good information on clearcase commands.
1. http://www.yolinux.com/TUTORIALS/ClearcaseCommands.html (Has some simple examples)
3. Last but not least, use cleartool man to get offline help. (I goes without saying that you should have cc installation if you have to use it)