ReadAll Method (Windows Script Host)

object

StdIn text stream object.

The ReadAll method returns a string. The StdIn, StdOut, and StdErr properties and methods work when running the script with the CScript.exe host executable file only. An error is returned when run with WScript.exe.

The following code demonstrates the use of ReadAll.

Dim Input
Input = ""

Do While Not WScript.StdIn.AtEndOfStream
   Input = Input & WScript.StdIn.ReadAll
Loop
WScript.Echo Input

var input = "";
while (!WScript.StdIn.AtEndOfStream)
{
   input += WScript.StdIn.ReadAll();
}
WScript.Echo(input);

Reference