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Date: Tue, 01 Mar 2011 15:11:31 +0100
From: Marc Kleine-Budde <mkl@pengutronix.de>
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Subject: Re: scripts
To: Vanalme Filip <F.Vanalme@TELEVIC.com>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>

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On 03/01/2011 03:06 PM, Vanalme Filip wrote:
[...]

> One more question about barebox scripts (I guess even scripts in
> general...). This is part of a script from another board (that I took
> over for my own board):

> #!/bin/sh
>=20
> . /env/config
>=20
> If [ x$1 =3D xflash ]; then
> 	root=3Dflash
> 	kernel=3Dflash
> fi
>=20
> if [ x$1 =3D xnet ]; then
> 	root=3Dnet
> 	kernel=3Dnet
> fi
>=20
> why the scripts are using i.e. [ x$1 =3D xflash ] instead of just simpl=
y [ $1 =3D flash ] ? Both are doing the same, no ?

The shell is quite old and doesn't support that. But you're right for
modern shells like bash or dash.

cheers, Marc

--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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