The version of SPSS on CUNIX is OLD, version SPSS 6.1, and may not have all the features found workstations in CUIT and in the Libraries.
To use SPSS on CUNIX it is recommended that you run jobs on "batch" mode. In batch mode, SPSS commands are executed from a file and output is sent to the screen or to an output file. A file of SPSS commands (also called an SPSS syntax file or SPSS program file) is a text file that you must create. The file would contain the SPSS commands that in the Windows version you would select from the pull-down menus.
For more information about an SPSS syntax file see the guide on Writing an SPSS Program. The staff of the DSSC Data Service can help with basic questions about SPSS (email email@example.com) but not with questions specific to the CUNIX environment.