From:	paslawsk AT cadvision DOT com (Dan Paslawski)
Subject:	system() call behaviour.
8 May 1998 01:29:23 -0700 :
Message-ID:	<01BD79A4.73339640.cygnus.gnu-win32@ts11ip130.cadvision.com>
Mime-Version:	1.0
To:	"'Cygnus Request'" <gnu-win32 AT cygnus DOT com>
Cc:	"'Us'" <paslawsk AT cadvision DOT com>

I have an application which performs a sort on a datafile using system utilities
(via the function "system()").

	void sort_data(char *fname)

	char *command = new char[MAX_SIZE];

	sprintf(command, "cp %s %s.BAK", fname, fname);
	ercode = system(command);
	if (ercode == 0)
	{
		sprintf(command, "/bin/sort -n +1 -T . %s.BAK > %s", fname, fname);
		ercode = system(command);
	}	

	if (ercode != 0) printf("Error %d returned by system()\n", ercode);

When running this under the Cygwin Bash environment, this code works properly.  However,
if I run the code in a Windows NT Command Prompt Window (or an MS_DOS Window under
Windows 95),  the calls to system() fail.  I have also tried this segment of code with other 
commands (eg. dir, copy, mspaint), with the same results.

Any suggestions?

Dan
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