Re: [Dev-C++] My Operating System...

[Matthew O. <mt...@ya...>]

I think programming an OS even for fun you should
learn the basics of computer programming first.
Passing arguemtns is very elementary. In your main you
have two variables one that holds numbers of arguments
and the other an pointer to and array. That array is
actually passed to the program by the OS. Most people
use:

int main(int argc, char *argv[])
argc = number of arguments
argv = the array of arguments

Try this:

#include <stdio.h>

int main(int argc, char *argv[])
{
    int i;
    fprintf(stdout,
        "The number of command line arguments is
%d\n",
        argc);
    fprintf(stdout,"The program name is
%s\n",argv[0]);

    for (i = 1; i < argc; i++)
    {
        fprintf(stdout,"%s",argv[i]);
    }
    fprintf(stdout,"\n");
    return 0;
}


If you do a search on OS programming your going to
find a ton of sites that will teach you the basics
step by step.

http://directory.google.com/Top/Computers/Programming/Operating_Systems/

Good luck
Matthew Ozor
--- Per Westermark <pw...@ia...> wrote:
> Note that if you make your completely own OS, you
> might use any method you
> like, since you have to implement it yourself.
> 
> Alternative 2 - using msdos.sys + io.sys and just
> replacing the command
> line. One again, you might use any method you like,
> since msdos will only
> specially handle the first two arguments meaning
> that the command.com
> replacement must contain full commandl line parsing.
> 
> Alternative 3 - you are still going to use
> command.com. Then - I haven't
> an old MSDOS available so I can't test - I assume
> you have to run your
> commands as dir.exe, md.exe etc, since command.com
> will otherwise process
> the built-in commands dir/echo/... as reserved words
> and process by itself
> without looking for any external program with the
> same name in the
> program path. Anyway, if you manage to start your
> own external programs,
> the command line parameters will be available
> exactly as if you write a
> normal dos or win32 command line program.
> 
> /Per W
> 
> On Tue, 20 Apr 2004, Rick Langschultz wrote:
> 
> > I am writing an operating system called StarFire
> it will be based off of
> > dos, however the programs included with
> command.com (dir, echo, etc. ) will
> > be external commands in the C:\bin folder. What
> functions can I use to
> > detect arguments passed from the shell to a
> program.
> >
> > Example:        [dir.exe -a C:\bin] or [dir.exe
> -hsx C:\bin]
> >
> > dir is the standard dos dir statement however i
> want the arguments to be:
> >     -a        all files
> >     -h        hidden files
> >     -s        system files
> >     -x        compressed files
> >     -u        user files
> >     -t        text files
> >
> > or any combination of  those with only one dash.
> Is this possible?
> >
> >
> >
> >
>
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