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To: scottl@samsco.org
From: "M. Warner Losh" <imp@bsdimp.com>
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Subject: Re: tcsh
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In message: <42719BA0.5030901@samsco.org>
            Scott Long <scottl@samsco.org> writes:
: Why does 'cd' have to be aliased?

It doesn't.  In historical csh implementations (eg, sunos 4, 4.2 or
4.3 BSD) needed to alias cd to get the prompt set, but tcsh has indeed
obviated that need, with all the benefits that you describe.

Warner