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From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.unix.questions
Subject: Re: Temporary stdin redirect
Message-ID: <15077@smoke.brl.mil>
Date: 4 Feb 91 22:53:15 GMT
References: <20798@unix.SRI.COM>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 6

In article <20798@unix.SRI.COM> ubi@ginger.sri.com (Ron Ueberschaer x4399) writes:
>There ought to be a way to start a program off with stdin redirected
>from a file, then take over from real stdin.  Does such a capability
>exist in UNIX, preferably under csh?

The standard UNIX idiom for this is "cat file - | command".