Path: utzoo!attcan!uunet!virtech!cpcahil
From: cpcahil@virtech.uucp (Conor P. Cahill)
Newsgroups: comp.unix.questions
Subject: Re: Using csh commands within the system() function call
Keywords: csh sh system
Message-ID: <1990Jan13.213312.6620@virtech.uucp>
Date: 13 Jan 90 21:33:12 GMT
References: <239@tnl.UUCP>
Organization: Virtual Technologies Inc.
Lines: 28

In article <239@tnl.UUCP>, saf@tnl.UUCP (friedman scott) writes:
> I wish to use a system command that works under csh but not under sh within
> a system() function call in a C program.  The line looks something like this:
> 
>    system("command_that_generates_errors >& /dev/null");


You could modify it so that it will work under sh (like the following):

     system("command_that_generates_errors > /dev/null 2>&1");

or you could fork and execute the program yourself, mapping stdout and stderr
   to /dev/null.

or you could write a new system() like program (maybe csystem()) that

	forks
	if child runs csh -c arg_string;
	waits
	returns



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| Conor P. Cahill     uunet!virtech!cpcahil      	703-430-9247	!
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