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Re: [Help-bash] Where is the usage like "exec 3<> File" documented?


From: Dave Rutherford
Subject: Re: [Help-bash] Where is the usage like "exec 3<> File" documented?
Date: Sat, 14 Mar 2015 16:37:47 -0400

On Sat, Mar 14, 2015 at 3:39 PM, Peng Yu <address@hidden> wrote:
> Man bash says the following. But should "3<> File" be considered as command?
>
> exec [-cl] [-a name] [command [arguments]]
>     If command is specified, it replaces the shell.
[...]
> How to understand "exec 3<> File" then?

`man bash' says more than what you quoted. Look to the penultimate
sentence of that paragraph:

    If command is not specified, any redirections take
    effect in the current shell, and the return status is 0.



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