Which IBM Rational ClearCase commands do not require a ClearCase Atria license or a FlexLM license for usage?
You want to access ClearCase while the license server is not yet installed or unavailable. The cause can be network issues or a server crash..
Although not a sub-command of cleartool, cleartool -ver and cleartool -verall do not require a license.
All other commands require a license.
For more information on the above and all cleartool sub-commands, see IBM Rational ClearCase Command Reference, or run cleartool man.