CheckFilesFinal batch to check wheathre final files is existed.

CheckFilesOverwrite check wheather to overwrite existing files.

CheckInputFiles check input files.

CheckRenameFinal check final file wheather renamed.

CheckRenameOverwrite check wheather to rename existing files.

CopyFile copy file from srcFilePath to dstFilePath.

CreateDir create dir with os.MkdirAll.

CreateFile create file.

CreateFileParDir create parant dir of file.

FileSize get file size.

LinkFileToDir create os.Symlink.

NewOutStream set stdout or outfn.

Open connect the file using os.OpenFile (auto create if not exist the file).

PathExists check wheather file is existed.

ReadLines import a file as []string.