How to change all /bin/bash at /etc/passwd to /sbin/nologin?

Matthias Apitz m.apitz at
Mon Oct 9 01:03:44 PDT 2006

El día Monday, October 09, 2006 a las 09:41:38AM +0200, Lothar Braun escribió:

> 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

DONT DO THAT this way. The result would be that your actual
shell truncates the file '/etc/passwd' to zero length and
then launches the 'sed'.

In FreeBSD you must use 'vipw' (see its man page) and in the
vi launched by 'vipw' you may use something like:


Only do this if your familar with 'vi'.

Matthias Apitz
Manager Technical Support - OCLC PICA GmbH
Gruenwalder Weg 28g - 82041 Oberhaching - Germany
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