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Microsoft => Microsoft DOS => Topic started by: domingos.sn on July 25, 2008, 06:43:33 AM

Title: Bach Programming Help
Post by: domingos.sn on July 25, 2008, 06:43:33 AM

Hello,

I want to use a case structure with a batch file, but I don't know how to work with variables.

I know it should look something like this:

Quote

show(Press 1 if you want to do A, 2 if you want to do B)
:label0
get X
if x==1 then goto label1
if x==2 then goto label2
     else show(invalid number, try again)
             goto label0

:label1
[do A]
goto label_end
:label2
[do B]
goto label_end

:label_end

But I can't get how I create/define/make variables and how I get the input value for that variable.

Could someone help me, please ?

obs:
Using Comand Prompt from WinServ2k3

Title: Re: Bach Programming Help
Post by: diablo416 on July 25, 2008, 06:48:34 AM

:label0
::use set /p to get input, example
set /p x=Enter your Choice:
if "%x%"=="1" Goto Label1
if "%x%"=="2" Goto Label2
cls & echo You have made an invalid choice & Goto label0

:label1
:label2

Title: Re: Bach Programming Help
Post by: domingos.sn on July 25, 2008, 07:16:13 AM

Thanks!

Lemme just ask another question:
What is the difference between this:

Quote

cls & echo You have made an invalid choice & Goto label0

....and this:

Quote

cls
echo ...
goto label 0

?

Title: Re: Bach Programming Help
Post by: diablo416 on July 25, 2008, 07:32:04 AM

there isnt one, using & is the same as starting a new line so it looks like
cls & echo You have made an invalid choice & Goto label0 but its really

cls
echo you have made an invalid choice
goto label0

Title: Re: Bach Programming Help
Post by: domingos.sn on July 25, 2008, 07:34:59 AM

Ahh! I tought it was something like that =)!

Thanks again!