CFP_LP_CURRENT (last installed fixpack) CFP_LP_PREV (previous if any) CFP_LP_BASE_VERSION (base version for the fixpack).
This is an example: CFP_LP_BASE_VERSION="Release 6.5.1|January 21, 2004" CFP_LP_CURRENT="Release 6.5.1IF1|March 16, 2004" CFP_LP_PREV="Release 6.5.1|January 21, 2004"