echo off

:** ADDPATH.BAT  Ver 1.4  12/APR/1989  (c) M. Greenfield 1989 **

if %1@==@ goto addphelp
if %1@==/P@ goto addpprev
if %1@==/p@ goto addpprev
if %1@==/L@ goto addplast
if %1@==/l@ goto addplast
if %1@==/R@ goto addprst
if %1@==/r@ goto addprst

set addpathp=%path%
path %1;%addpathp%;%2
if %2@==@ path %1;%addpathp%
if %1@==/E@ path %addpathp%;%2
if %1@==/e@ path %addpathp%;%2
set addpathl=%path%
goto addpquit

:addplast
path %addpathl%
goto addpquit

:addpprev
path %addpathp%
goto addpquit

:addprst
set addpathl=
set addpathp=
goto addpquit

:addphelp
cls
echo  ADDPATH HELP
echo  ~~~~~~~~~~~~
echo   This file allows path changes to be made from the keyboard without retyping
echo   the whole of the path each time. Previous & Last paths are stored for reuse.
echo  USAGE:
echo   ADDPATH {addition}       ═» New-Path ═ {addition};Old-Path
echo   ADDPATH /E {addition}    ═» New-Path ═ Old-Path;{addition}
echo   ADDPATH {addition-1} {addition-2} ͯ
echo                            ═» New-Path ═ {addition-1};Old-Path;{addition-2}
echo                   Note:
echo                   The "additions" must conform to normal DOS path syntax,
echo                   excluding the semicolons (;)  e.g.  C:\WORD\LETTERS
echo.
echo   ADDPATH /P   ═» New-Path ═ Previous-Path
echo   ADDPATH /L   ͯ Restores New-Path if it was modified by another program
echo                   or after an ADDPATH /P command
echo   ADDPATH /R   ͯ Removes variables ADDPATHP & ADDPATHL from the environment 
echo                   (these are used in the above two commands for restoring or
echo                    returning to the previous path)

:addpquit
echo Environment:
echo  /P =%addpathp%
echo  /L =%addpathl%
path