The only character not allowed in Unix file names is the forward slash directory separator, so even that would be a pathological mistake waiting to bite someone

The only character not allowed in Unix file names is the forward slash directory separator, so even that would be a pathological mistake waiting to bite someone. Edit: my mistake, they can't contain nulls either: https://news.ycombinator.com/item?id=8485861 https://news.ycombinator.com/item?id=8485861