# Functions
CheckFileExists : check file exists or not.
CheckFileIsExist : check whether the file exists or not.
CheckPathExisted : check the path exists or not.
CopyFile : copy file.
DeleteFile : delete the file.
DirEmpty : DirEmpty.
DirExists :.
MakeDir : MakeDir.
OpenFile : OpenFile.
Pwd : Pwd.
ReadFile : read file.
WriteStringToFile : write content to file.