linux-kernel - Re: [patch 1/3, resend] scripts: replace gawk, head, bc with shell, update

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Date:	Wed, 7 Feb 2007 09:58:12 +0100
From:	"Jesper Juhl" <jesper.juhl@...il.com>
To:	"Oleg Verych" <olecom@...wer.upol.cz>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Roman Zippel" <zippel@...ux-m68k.org>,
	"Sam Ravnborg" <sam@...nborg.org>,
	"William Stearns" <wstearns@...ox.com>,
	"Martin Schlemmer" <azarah@...feratu.za.org>
Subject: Re: [patch 1/3, resend] scripts: replace gawk, head, bc with shell, update

On 06/02/07, Oleg Verych <olecom@...wer.upol.cz> wrote:
> scripts: replace gawk, head, bc with shell, update
>
>   Replacing overhead of using some (external) programs
>   instead of good old `sh'.
>
> Cc: Roman Zippel <zippel@...ux-m68k.org>
> Cc: Sam Ravnborg <sam@...nborg.org>
> Cc: William Stearns <wstearns@...ox.com>
> Cc: Martin Schlemmer <azarah@...feratu.za.org>
> Signed-off-by: Oleg Verych <olecom@...wer.upol.cz>
> ---
>
>  Whitespace cleanup included.
>
>  scripts/gen_initramfs_list.sh | 43 +++++++++++++++++++++---------------------
>  scripts/makelst               | 34 ++++++++++++++++-----------------
>  2 files changed, 39 insertions(+), 38 deletions(-)
>
> Index: linux-2.6.20/scripts/makelst
> ===================================================================
> --- linux-2.6.20.orig/scripts/makelst   2007-02-06 02:12:38.811908000 +0100
> +++ linux-2.6.20/scripts/makelst        2007-02-06 02:12:43.688212750 +0100
> @@ -1,31 +1,31 @@
> -#!/bin/bash
> +#!/bin/sh

I don't like this change much.  We don't know what shell /bin/sh is on
a random users system - much better to be explicit and make sure we
use/require bash.
I expect this change to cause pain for users who have zsh, csh, ksh,
ash or some other shell as /bin/sh but also have /bin/bash available.
Previously things would just work, but now it will possibly break due
to using a different shell.

-- 
Jesper Juhl <jesper.juhl@...il.com>
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