Message-ID:	<34F0C920.EA8645BF@csun.edu>
Date:	Sun, 22 Feb 1998 16:56:00 -0800
From:	Ryan Bright <rmb56313 AT csun DOT edu>
Reply-To:	rmb56313 AT csun DOT edu
MIME-Version:	1.0
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How do i make a C program recieve command line switches.
References:	<01bd3ff3$d01ce7c0$0100a8c0 AT comp1>
NNTP-Posting-Host:	s253n030.csun.edu
Organization:	California State University, Northridge
Lines:	28
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Rushworth P-12 wrote:
> 
> I'm Trying to make an alternative to DIR that can exclude file and list
> only certain types of files how do a make the program recieve command line
> parameters.?

First off, have you typed DIR /? lately?  It's a pretty versatile little
command.
To accept command-line params, declare your main function like this :

int main(int argc, char *argv[]) {
  ...
}

Now, argc will contain the number of command line paramaters (btw, the
program name counts as one; ie: for "prognam -?", argc = 2) and *argv[]
will contain the actual parameters.  Here's a quick example (untested) :

#include <stdio.h>
int main(int argc, char *argv[]) {
  int k = argc;
  while (k--) printf("%s\n", argv[k]);
  return 0;
}

It should print out all the command line arguments in descending order.

-Ryan

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