Get-ChildItem X:MyPath -Recurse -Force | Where { ($_.Attributes.ToString() -Split ", ") -Contains "Hidden" } | Select FullName

dir /ah file.ext >nul 2>nul && (
  echo file.ext is hidden
) || (
  echo file.ext is NOT hidden
)

attrib file.ext | findstr "^....H" >nul && (
  echo file.ext is hidden
) || (
  echo file.ext is NOT hidden
)

for %%F in (file.ext) do echo %%~aF | findstr "^...h" >nul 2>nul &&
  echo file.ext is hidden
) || (
  echo file.ext is NOT hidden
)

for %%F in (file.ext) do set "attr=%%~aF"
if %attr:~3,1% equ h (
  echo file.ext is hidden
) else (
  echo file.ext is NOT hidden
)

call :IsHidden file.ext &&
  echo file.ext is hidden
) else (
  echo file.ext is NOT hidden
)
exit /b

:isHidden
echo %~a1 | findstr "^...h" >nul 2>nul
exit /b

call :IsHidden file.ext &&
  echo file.ext is hidden
) else (
  echo file.ext is NOT hidden
)
exit /b

:isHidden
setlocal
set "att=%~a1"
if %att:~3,1% equ h exit /b 0
exit /b 0