Gets the file owner.
Gets the permissions of the specified file or filepath in their octal format.
Gets the file’s group.
Copies a file.
Moves a file.
Deletes a file or directory.
Checks if a file or directory exists.
Checks if resource is a file.
Reads entire file into a string.
Checks if resource is a directory.
Reads entire file into an array.
Checks if a file is readable.