Sum operation in batch file

[vascobrito]

Hi there
i need to assign an numeric argument passed to the batch file, wich i have no problem doing. The problem is that i need to assign that value to another variable adding one to the value.i'l explain better.
for instance,the user writes in the prompt:

test.bat 20009

in the batch file i have

SET Guia=%1

in NT/2000 i can simply do what i want with this:

SET /A NewGuia=%Guia% + 1

NewGuia would be = 20010

in dos,95,98 this doesn't work. "SET" doesn't use "/A"

I think i have readed some where that it's not possible to do aritmetic operations in earlier versions of Dos. Is this true, if it is , how can i solve this?

Thanks for any help

 

[MiggyD]

You are correct. It will not work on earlier versions of DOS.

Solution: pass the number into a program that will add the numbers up (like QBasic or C/C+).

If you don't have any sort of programming language (like the aforementioned) then you could possibly use the one that comes with virtually every DOS & Windows.

Please let us know if you have QBasic or C, first.
--MiggyD

 

[vascobrito]

Hi MiggyD
I don't have QBasic or C.
Also this is to use in MsDos 5.0 environment.
Thanks

 

[vascobrito]

I have com up with a solution for my problem but now i have another. I can increase a number of 5 digits, wich is what i want, but now i have to get user input (5 digit number) and that's not a problem. The problem is to separate the digits from the number, wich i need to do to increse the number.
say the user inputs:
test.bat 20056
then i need to separate them 2,0,0,5,6. then i can increase the number to 20057.
thanks

 

[MiggyD]

sorry, been away on business.

MS-DOS had QBASIC.exe, but you'd have to 'extract' it from the CAB files. Are you sure you can't "extract" it from the CD/Floppies?

Have you tried the MS site? It (may still) provides info on how to extract it and which CAB it's in.

The alternative is to use Debug, which is very nasty if you program it wrong.