Check if two file paths resolve to the same file

问题

Say I have three file paths:

setwd("C:/superlongdirname")
files <- c("C:/superlongdirname/myfile.txt", "C:\\SUPERL~1\\myfile.txt", "./myfile.txt")

These all point to the same file. How, given multiple references to the same file, can I check that they are indeed referring to the same file within R?

回答1:

Use the full version of the filepaths and compare:

normalizePath(files[1]) == normalizePath(files[2])

来源：https://stackoverflow.com/questions/39095537/check-if-two-file-paths-resolve-to-the-same-file