I find the suggestion that any hacker faced with a UNIX system rather than a pre-Windows 95 OS as their target system would be relieved... *amusing*. ;)
Since Lex (the character who utters the line in question) isn't trying to "hack" anything, that's rather irrelevant, no?
In the scene in question, she's trying to make legitimate use of the park's control software, through its (ostensible) proper user interface. She doesn't need to defeat any security; Nedry apparently left his X11 session up and unsecured.
Of course, using SGI's silly 3D file browser as some sort of user interface (maybe the park's control software UI is a bunch of perl scripts...) is pretty dumb; but in the context of the scene, her comment makes some sense. Certainly more than the typical gibberish spouted by TV and film characters when conjuring with the Magic Computer. ("It's military-grade encryption. It'll take me a few minutes to break it, which I will do by typing furiously while windows appear and disappear and hex dumps and/or random source code scrolls by. Then I will adjust the Eigenvectors and we'll enhance the traffic-cam image so we can capture the perp's fingerprints.")