SAN FRANCISCO (Reuters) - International Business Machines Corp. (NYSE:IBM - news) late on Wednesday rolled out a new version of its database software aimed at users of Linux (news - web sites) and Unix (news - web sites) operating systems that it hopes will help the company take away market share from market leader Oracle Corp. (Nasdaq:ORCL - news). IBM said the latest version of its DB2 software that runs on Linux and Unix automatically self-manages databases, allowing companies to better manage, process and retrieve data such as product pricing. Armonk, New York-based IBM said that the latest database software,...