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Re: dd new iflag= oflag= flags directory, nolinks

From: Paul Eggert
Subject: Re: dd new iflag= oflag= flags directory, nolinks
Date: Wed, 22 Mar 2006 12:44:43 -0800
User-agent: Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux)

Olivier Delhomme <address@hidden> writes:

> So if this flag is linux specific does it mean that dd iflag=directory
> won't run on other unices ?

Yes, that's right.  It's just like "dd iflag=noatime".  The general
rule is that dd issues a runtime diagnostic and immediately fails if
you try to use a flag that isn't supported on the current platform.

The issue is more complicated than "linux specific".  For example,
iflag=noatime is supported by some Linux kernels but not others.
And iflag=nolinks works on SunOS 5.10 and later, but not on any Linux
kernel that I know of (yet).

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