Welcome to LQ.
Probably Google : sap gui linux
http://www.google.com/webhp#hl=en&q=...8d967d8aa43052
And find LQ :
http://www.linuxquestions.org/linux/...SAP_R3_Systems
→ " HOW TO Run SAP GUI On LINUX ... "
( You will have to add Ubuntu Partner in 'Menu' > Software Sources.
Then : sudo apt-get update , sudo apt-get install sun-java6-jre ).
.. And there's another 165,000 hits with the Google keyword, 'sap gui linux'.
..
Good luck !