@echo off
set value=%1
if "%value%"=="." (
	echo Uncorrect file name
	Goto F
	)
if "%value%"==".." (
	echo Uncorrect file name
	Goto F
	)
for %%j in (%pathext%) do (
	for %%i in (%value%%%j) do (
		if Exist %%~$Path:i (
			echo %%~$Path:i
			Goto F
			)
		)
	)
for %%i in (%1) do (
	if Exist %%~$Path:i (
		echo %%~$Path:i
		Goto F
		)
	)
if "%value%"=="/?" (
	echo search.bat pattern...
	echo Displays the location of files matching the search pattern.
	echo By default, searches are performed in the current directory and in the directories
	echo specified in the PATH environment variable.
	Goto F
	)
if "%value%"=="" (
	echo Uncorrect file name
	Goto F
	)
start /b %value% 1>nul 2>nul
	if %ErrorLevel% equ 0 (
		echo this is internal comand
	Goto F
	)
echo File not found
:F
exit /B