Тестовые примеры / ch7 / test_access

	#include <sys/types.h>
	#include <unistd.h>
	#include <fcntl.h>


	int main (int argc, char* argv[]) 	

	{

		char 		buf[256];

		int 		fdesc, 	len;

		while ( --argc > 0) 		

		{

			if (access(*++argv,F_OK)) 				// a brand new file	

			{	

				fdesc = open(*argv,O_WRONLY|O_CREAT,0744);

				write(fdesc,"Hello world\n",12);

			} else 							// file exists, read data

			{

				fdesc = open(*argv,O_RDONLY);

				while (len=read(fdesc,buf,256)) 	

					write(fdesc,buf,len);

			}

			close(fdesc);

		} /* for each argument */

		return 0;
	}