Subject: Re: useradd: spaces and $ in usernames
To: Hubert Feyrer <>
From: Todd Vierling <>
List: tech-userlevel
Date: 11/15/2001 20:39:27
On Fri, 16 Nov 2001, Hubert Feyrer wrote:

: It's been brought to my attention that there might be desires to use
: spaces and $s in login names[*],

Both would be bad, spaces more than $s.

Think how many /bin/sh scripts written by third parties, or perhaps even
provided by NetBSD, which do a "for user in ..." block.

I believe the semantic validation of usernames being confined to
alphanumeric, ., _, and - is quite important restriction.

-- Todd Vierling <>  *  Wasabi & NetBSD:  Run with it.
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