Definition of TARE. 1. : a deduction from the gross weight of a substance and its container made in allowance for the weight of the container; also: the weight of the container. 2. : counterweight.
A filename cannot contain any of the following characters: \ / : * ?  < > |. 1  Those characters have a functional meaning that affects the operating system's handling of the files and even recognizing that there is even a file if it had to encounter such a filename. I imagine you could rename within some version of Linux for example, but then I imagine you'd produce a file that Windows would hang up on.
I'm not sure what the maximum file name length can be (for ext4), but it's more dependent on the file system, than Linux itself. On FAT32, I think it is 255 characters. You probably don't ever actually need a file name that long.