This is a clone of the Unix (csh) "which" command, used to locate
executable commands in the user's PATH.  It has several enhancements
not in the Unix version:  it can print the locations of all copies 
of the command(s), not just the one which will be executed; and it 
can find DLLs in the LIBPATH and data files in the DPATH (these are
probably OS/2-specific concepts anyway).

In addition, the single which.exe executable which is included here
is a bound executable, able to run under any version of OS/2 or under
MS-DOS.  It has been tested under OS/2 2.0 GA+SP (in windowed, full-
screen and DOS sessions, and both CMD.EXE and 4OS2.EXE); under OS/2 
1.3 (CMD.EXE and DOS sessions); and under MS-DOS 3.31.  Clemens Beck-
stein tested it under 4DOS.COM.

Greg Roelofs, newt@uchicago.edu
21 April 1993
