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From: Lothar Braun <mail@lobraun.de>
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Date: Mon, 9 Oct 2006 09:41:38 +0200
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Subject: Re: How to change all /bin/bash at /etc/passwd to /sbin/nologin?
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Hi James,

On Monday 09 October 2006 09:24, James Corteciano wrote:
> How to change all word lines of /bin/bash at /etc/passwd file to
> /sbin/nologin in just  a single line command?

I think you can do this with:

sed 's!/bin/bash$!/sbin/nologin!' /etc/passwd > /etc/passwd

Best regards,
Lothar