Cross-platform file name handling in .NET Core

Question

How to handle file name in System.IO classes in a cross-platform manner to make it work on Windows and Linux?

For example, I write this code that works

Answer 1

The original post is over a year old but I still ran into this issue. It seems to me like the use of dots in relative paths is also an issue.

A path like

".\\input\\mydata.csv" 

worked well on windows but not on unix. When changing the dot-notation for current directory to:

Path.GetFullPath(Directory.GetCurrentDirectory())

I had more success.