为什么这些文件夹的共享名称附有美元符号？

I've recently come into a web development position with a company who just lost their server/network admin. Though I was hired for web development, I'm being asked to do some routine maintenance tasks on the server that I'm nonetheless having trouble with, having no background in this sort of stuff. It doesn't help that we've lost all communication with the old network admin.I've recently come into a web development posit