A significant factor in the loss of women in undergraduate computer science programs is the 'experience gap' - women grow discouraged and leave because they lack practical knowledge in computing. Learning to work in UNIX appears to be a widespread stumbling block; female students in programs ranging from Carnegie Mellon University (CMU) to California State University, Hayward (CSUH), identified inexperience with UNIX as a specific problem in early core courses. Students are expected to have acquired knowledge of UNIX without being taught it in any formal setting. No established baseline exists for how much an undergraduate should know about UNIX. Through collaborating with faculty, staff and students with a wide range of UNIX skill levels, we will (1) assess early (Data Structures, Programming Language Constructs) female computer science majors' knowledge, attitudes, and needs concerning UNIX, and (2) provide those students with a way to bridge the UNIX experience gap. Our methodology is sufficiently general that we expect it will benefit all non-traditional students.