: TR  Switch Batch Command Tracing Mode ON/OFF  01/07/1993-08/27/1999
: -------------------------------------------------------------------
: Copyright (C) 1993-1999 by Vladimir Veytsel           www.davar.net

: 1. Tracing mode manipulation parameter:
:    "?" or "/"    - Display TR batch command text
:    "=" or "C"    - Display current tracing mode
:    "0" or "OFF"  - Switch tracing mode OFF
:    "1" or "ON"   - Switch tracing mode ON
:    Other         - Toggle current tracing mode OFF/ON

:    Note: AUTOEXEC.BAT or AUTOEXEC.NT should contain command
:          "SET TR=OFF"  - Tracing is OFF

@ECHO %TR%

 IF %1.==/. .OR. %1.==?. (LIST %_BATCHNAME ^ GOTO Finish)

 IF "%1"=="=" .OR. %@UPPER[%1].==C. GOTO Finish

 IF %1.==0. .OR. %@UPPER[%1].==OFF. (SET TR=OFF ^ GOTO Finish)
 IF %1.==1. .OR. %@UPPER[%1].==ON.  (SET TR=ON  ^ GOTO Finish)

 IFF %TR%.==OFF. THEN
     SET TR=ON
 ELSE
     SET TR=OFF
 ENDIFF

:Finish

@ECHO %S%%B%Batch command %C%tracing %B%mode is now %C%%TR%%D%