Windows Script Host

Launching

At the console, type

cscript //nologo scriptname.js

The //nologo is optional; it suppresses the version output (which, for reasons unknown, is output on default!).

Console I/O

To write to stdout, use the WScript.StdOut object. For stderr, WScript.StdErr.

WScript.StdOut.Write("something");
WScript.StdErr.WriteLine("something that's a line");

WScript.StdIn, of course, corresponds to stdin.

var input = "";
while(!WScript.StdIn.AtEndOfLine)
  input += WScript.StdIn.Read(1); // read 1 character

var stdin = WScript.StdIn;
var stdout = WScript.StdOut;

while(!stdin.AtEndOfStream)
{
  var str = stdin.ReadLine();
  stdout.WriteLine("Line " + (stdin.Line - 1) + ": " + str);
}

See also

• WScript object