echo off
if "%1"=="/?" goto usage
if "%1"=="" goto usage
d . :path /IEs[t]hP~~/.u + %1.* %2 %3 %4
goto exit
:usage
echo WHICH: Find out from where DOS will find program f1 to run.
echo usage: WHICH f1 o1 o2 o3 ..
echo where o1, o2 .. are additional options
echo e.g.   WHICH FORMAT      Show from where the program "FORMAT" is run
echo        WHICH ED /c a:    Find from where "ED" is run and copy it to drive A:
:exit