Re: 'su -l' EQ 'su -'

To: Georges Heinesch <ghmlist%ibm.net@localhost>
Subject: Re: 'su -l' EQ 'su -'
From: Todd Vierling <tv%pobox.com@localhost>
Date: Fri, 21 Aug 1998 18:55:05 -0400 (EDT)

On 21 Aug 1998, Georges Heinesch wrote:

: Saying 'su - user' is does the same as 'su -l user'. For some reason,
: the 'l' is not necessary. However su(1) doesn't reveal anything about
: this behaviour. Why is this?

"su - user" is a historic usage that is kept for compatibility.  There's
many things like that in various commands, but they aren't documented just
because of how old they are.  :>

-- 
-- Todd Vierling (Personal tv%pobox.com@localhost; Bus. 
todd_vierling%xn.xerox.com@localhost)

References:
- 'su -l' EQ 'su -'
  - From: Georges Heinesch

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