I just tried to overwrite a JPEG image that I had open in Preview with a newer version, and got a message about how the file couldn't be replaced because it was "in use." I had to quit Preview in ...

First let me say that I know next to nothing about Unix so that is why I am turning to you all for some help.<P>The problem is that I need to prevent files from being overwritten in a particular ...

Why “delete” and “format” do not really erase an external drive When I delete a file from an external drive, the operating system usually just removes its entry from the file system index and marks ...