When I downloaded the patches from Sun, I unzipped them as such: "unzip 108899-01.zip" and it created a directory by the same name (minus .zip), so the directories I was interested in deleting were those created by unzipping the zip files. I'm not even sure if these are "backup" files I keep hearing mentioned?! There's a directory under /var/sadm/patch for each patch but it only contains two files. Is this the "backup" location?