Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!cs.utexas.edu!uunet!unhd.unh.edu!jwm712
From: jwm712@unhd.unh.edu (Jonathan W Miner)
Newsgroups: comp.lang.c
Subject: Re: Appending environment variable to system calls...
Message-ID: <1991Apr1.235953.22939@unhd.unh.edu>
Date: 1 Apr 91 23:59:53 GMT
References: <11697.27f376d8@zeus.unomaha.edu> <22200@yunexus.YorkU.CA>
Organization: University of New Hampshire
Lines: 32

In article <22200@yunexus.YorkU.CA> racine@yunexus.yorku.ca (Jeff Racine) writes:
>I wish to be able to set an environment variable (the path to a file)
>and then to execute a program using the system() function in the
>following fashion:
>
>	char *s;
>	s=getenv("FOO");
>	system("FOO/FUBAR");
>
> [ stuff deleted ]
>Jeff Racine        
>racine@nexus.yorku.ca   
>racine@yunexus.UUCP

        The following may do what you want:

        char *s;
        char temp[256];
        s=getenv("FOO");
        sprintf(temp,"%s/FUBAR",s);
        system(temp);

Better ways probably exist, take a look at the exec functioins.
Jon.

        


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Jonathan Miner        | I don't speak for UNH, and UNH does not 
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