let(++)a b= Path.Combine(a,b)

letgetBasenamea= Path.GetFileNameWithoutExtension a

letgetFullPath a= Path.GetFullPath a

letgetFilenamea= Path.GetFileName a

letgetDirectoryNamea= Path.GetDirectoryName a

letgetBasename(a:string)= Path.GetFileNameWithoutExtension(a)

letgetFullPath a= Path.GetFullPath(a)

letgetFilename(a:string)= Path.GetFileName(a)

letgetDirectoryName(a:string)= Path.GetDirectoryName(a)

ifnot(Directory.Exists dir)then Directory.CreateDirectory dir|>ignore

letresult= Path.Combine(dir,Path.GetFileName source)

letresult= Path.Combine(dir,getFilename source)

result

File.Copy(source, dest,true)

if Path.IsPathRooted(exe)then exe

matchPath.GetDirectoryName(exe)with

matchgetDirectoryNameexewith

|""-> exe

|_-> Path.Combine(baseDir,exe)|> Path.GetFullPath