
#include <stdio.h>
#include <stdlib.h>

main()
{
	int i = 0;

	while (environ[i] != NULL) {
		printf("environ[%d] ==> |%s|\n", i, environ[i]);
		++i;
	}
	printf("\nenvironment variable count = %d\n", i);
}

environ[0] ==> |COMSPEC=C:\COMMAND.COM|
environ[1] ==> |PROMPT=$p $g|
environ[2] ==> |PATH=c:\dos;c:\util;|
environ[3] ==> |ABC=def|

environment variable count = 4

