Batch DEBUG

[einstein1969]

Hi to all,

Very often I get the message: The syntax of the command is incorrect.

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Sintassi del comando errata.
E:\x264\provini>

Someone has implemented a mechanism to automatically get the line where it occurred or checkpoints or other?

Thanks

einstein1969

[einstein1969]

There is a method for get execute at the parser another code?

I look that it is possible catch a line number in this mode, but i don't know if it is usefull

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@echo off & setlocal EnableDelayedExpansion

if NOT "%1"=="" goto %1

:: Create the file with line number

:: Add at every line a code that...

For /f %%e in ('%~nx0 Debug 2^>^&1') do (
   set mess=%%e
   if /I "!mess:~0,3!"=="REM" echo Stop at !mess:*.=! 1>&2
)

goto :eof

:Debug
 rem.1  @echo off      &:
 rem.2  echo prova      &:
 rem.3k echo yyyyy      &:

Note: the last line don't have CR/LF

output

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E:\x264\provini>debug_batch.cmd
Stop at 3k

einstein1969

[aGerman]

The only debugger that I know is cmd.exe Open the Batch file within a separate cmd shell. With ECHO ON you can easily find out where a command fails unless one of the command lines in a block enclosed into parentheses caused a problem. In this case the error will be displayed if the block has been finished.

I remember that jeb made some efforts to write such a debugger but I don't remember if he posted it here at DosTips or somewhere else.

Regards
aGerman

[einstein1969]

thanks aGerman!!

I had completely forgotten about this! But it 's really brilliant!

einstein1969

[Ed Dyreen]

While developing I tend to call scripts indirectly, for example;

myScript.CMD

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...

tstMyScript.CMD

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@echo off &setlocal disableDelayedExpansion &set "this=%~n0"
:: (
   start "" /low "%comspec%" /k ^""%this:~3%.CMD" /argName: "argValue"^"
:: )
endlocal

This prevents cmd from closing the console after encountering a syntax error, so I have the chance to read the error message.

Unfortunately the cmd /K option doesn't always work