This file will change the file title of all files is a directory so that they are all just an incremented number with the original extension still in place.

numeric_rename.bat

@set @junk=1 /*
@cscript //nologo //E:jscript %~f0 %*
@goto :eof */

var args=WScript.Arguments, shell=WScript.CreateObject("WScript.Shell"), bForced, nStartIndex, sFilter;

if(args.length==0||(args.length==1&&(bForced=args(0).toLowerCase()=='-f'||args(0).toLowerCase()=='--force'))) 
	err(1, "You must provide a starting value to begin counting at.");
if(args(0)=='-?'||args(0).toLowerCase()=='--help') { showHelp(); WScript.Quit(0); }
if(isNaN(nStartIndex=parseInt(args(bForced?1:0)))||nStartIndex<0)
	err(2, sprintf("The value [%s] which was given for start index is invalid. It should\n\tbe a positive integer.", nStartIndex));
sFilter=(args.length==(bForced?3:2))?args(bForced?2:1):".*";

var fso=new ActiveXObject("Scripting.FileSystemObject"), folder=fso.GetFolder(shell.CurrentDirectory), 
	enFiles=new Enumerator(folder.Files), oFile, file_path, file_ext;

if(!bForced) {
	if(sFilter!=".*") err(255, sFilter, "FILTER", false);
	for(var nCurDX=nStartIndex; !enFiles.atEnd(); enFiles.moveNext(), nCurDX++) {
		oFile=enFiles.item();
		file_path=oFile.Name;
		if(file_path.search(sFilter)==-1) {
			err(255, file_path, "  SKIP", false);
			continue;
		}
		file_ext=getFileExt(file_path);
		err(255, sprintf("%s\n    TO:\t%s", file_path, nCurDX+file_ext), "RENAME", false);
	}
	WScript.Echo("\nType 'yes' to continue...");
	if(WScript.StdIn.ReadLine().toLowerCase()!="yes")
		err(-1, "Action cancelled by user.", "INFO", false);
	enFiles=new Enumerator(folder.Files);
}

for(var nCurDX=nStartIndex; !enFiles.atEnd(); enFiles.moveNext(), nCurDX++) {
	oFile=enFiles.item();
	file_path=oFile.Name;
	if(file_path.search(sFilter)==-1) continue;
	file_ext=getFileExt(file_path);
	try {
		oFile.Name = nCurDX+file_ext;
	} catch(e) {
		err(3, sprintf("Cannot rename file:\n\t%s\n\nReason: %s\n", file_path, e.description));
	}
}
/////////// FUNCTIONS ///////////
function sprintf(format, etc) { var arg=arguments,i=1; return format.replace(/%((%)|s)/g, function(m){return m[2]||arg[i++]}); }
function err(exitCode, msg, type, help) { 
	if(typeof(help)==='undefined') help=true;
	if(typeof(type)==='undefined') type="ERROR";
	if(help) showHelp();
	WScript.Echo("\n"+type+":\t"+msg);
	if(exitCode!=255) WScript.Quit(exitCode);
}
function getFileExt(file_path) {
	var dx=file_path.lastIndexOf("\\"), ret;
	if(dx==-1) dx=file_path.lastIndexOf("/");
	ret=file_path.substring(dx+1);
	return (dx=ret.indexOf("."))==-1?"":("."+ret.substring(dx+1));
}
function showHelp() {
	l   ="\n--------------",str=l;
	str+="\nNumeric Rename"+l+"\n\n";
	str+="This file will change the file title of all files is a directory so that they\n";
	str+="are named an incremented number with the original extension still in place.\n\n";
	str+="Usage: NUMERIC_RENAME_ALL [ -? | --help ] [ -f | --force ] <start-index> [ <filter> ]\n\n";
	str+="\t-?, --help\tDisplay this help screen and exit.\n\n";
	str+="\t-f, --force\tRename the files without prompting first.\n\n";
	str+="\t<filter>\tA regular expression which the file name must match\n\t\t\tto be processed.\n\n";
	str+="\t<start-index>\tThe value to begin counting at.\n\n";
	str+="For example (if called with 12345 as start-index):\n\n";
	str+="\ttest1.jpg\t\tis renamed to\t\t12345.jpg\n";
	str+="\ttest1.jpg.txt\t\tis renamed to\t\t12346.jpg.txt\n";
	str+="\ttest2.pdf\t\tis renamed to\t\t12347.jpg\n\n";
	str+="Currently, there is no way to sort the items and they will be numbered\n";
	str+="according to the default file order for your system.\n"+l;
	WScript.Echo(str);
}

I've fixed this script so that it can be called without the .bat extension. To do this in your own scripts replace cscript //nologo //E:jscript %0 %* with cscript //nologo //E:jscript %~f0 %*.

sir how can use of this file because it is not working in my destination folder.sir please help me fast