From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <80633e2d041106111416e87945@mail.gmail.com>
Date: Sat,  6 Nov 2004 19:14:51 +0000
From: Christian Grothaus <christian.grothaus@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] items in /bin with leading underscores
In-Reply-To: <20041106171557.GB25993@SDF.LONESTAR.ORG>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
References: <20041106171557.GB25993@SDF.LONESTAR.ORG>
Topicbox-Message-UUID: fdedca82-eacd-11e9-9e20-41e7f4b1d025

> In /bin there exist two similar entries of executables: One with and
> one without a leading underscore, e.g. /bin/touch and /bin/_touch.
> 
> They seem to have different sizes.
> 
> What is about it? How do they differ?

The ones with the leading underscores are created when you
replica/pull from the sources: when there's a new version of /bin/x,
replica/pull first executes 'mv /bin/x /bin/_x' so that you can switch
back to the old version in case there are problems with the new one.

Christian