Package vfsutil implements some I/O utility functions for vfs.FileSystem.
Walk walks the filesystem rooted at root, calling walkFn for each file or directory in the filesystem, including root. All errors that arise visiting files and directories are filtered by walkFn. The files are walked in lexical order.
Output: / /a-file.txt /another-file.txt /folderA /folderA/entry-A.txt /folderA/entry-B.txt /zzz-last-file.txt