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X-Authentication-Warning:	slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date:	Mon, 19 May 2003 11:26:44 -0400 (EDT)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	sferriol <sylvain DOT ferriol AT imag DOT fr>
cc:	cygwin AT cygwin DOT com
Subject:	Re: script to change home path in /etc/passwd
In-Reply-To:	<3EC8AE5A.4090907@imag.fr>
Message-ID:	<Pine.GSO.4.44.0305191121280.26639-100000@slinky.cs.nyu.edu>
Importance:	Normal
MIME-Version:	1.0

On Mon, 19 May 2003, sferriol wrote:

> hello
> i see that ssh read /etc/passwd for searching keys and other files.
> i've made a little script to change the home path in /etc/passwd
> it's not perfect and may be need improvements.
>
> #!/bin/bash
>
> OS=`uname -o`
>
> # in cygwin case
> if [ ${OS} == "Cygwin" ]; then
>
>         /bin/cp -p /etc/passwd /etc/passwd-bak-tmp &&
>         /bin/grep -v ${USERNAME} /etc/passwd-bak-tmp > /etc/passwd &&
>         mkpasswd -l -u ${USERNAME} -p ${HOME} > /etc/passwd-bak-tmp &&
>         /bin/sed -e "s/\/${USERNAME}:/:/" /etc/passwd-bak-tmp >> /etc/passwd &&
>         /bin/rm -f /etc/passwd-bak-tmp
> fi
>
> Sylvain

Sylvain,

The above looks useful, but, at first glance, is missing *a lot* of
quoting.  I'd say that at least all variable expansions (${VAR}) have to
be double-quoted.  I would also use a pipe instead of /etc/passwd-bak-tmp
in the last mkpasswd/sed chain, but that's pretty minor.
I'll take a better look later, if I have time.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
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ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"I have since come to realize that being between your mentor and his route
to the bathroom is a major career booster."  -- Patrick Naughton


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