Contains Returns true of array contains the given string.

CopyDir recursively copies a directory tree, attempting to preserve permissions.

CopyFile copies the contents of the file named src to the file named by dst.

DirectoryExists Returns true if the given path is a directory, and it exists.

ExpandPath Expands the given path to an absolute directory.

FileExists Returns true if the given path is a file, and it exists.

GetChildDirectories Gets child directories in the given directory.

GetFileLines Get all the lines from a file.

NewID generates a new identifier for use where random identifiers with low collision probability are required.

RemoveDuplicates Remove duplicate items from an array.

Reverse Reverses the array.