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From: Alexander Richter <Alexander.Richter@ATSonline.de>
To: Jean-Christophe BEGUE <begue.jc@gmail.com>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: Programatically write in a file in the environnent with a hush command
Date: Wed, 27 May 2015 06:24:17 +0000	[thread overview]
Message-ID: <97BF8529-638A-49F5-BF3A-51D52D57B774@atsonline.de> (raw)
In-Reply-To: <D72B6FFF-645F-41CC-9B99-2ACE13B05BFC@atsonline.de>


> Am 27.05.2015 um 08:10 schrieb Alexander Richter <alexander.richter@atsonline.de>:
> 
> Hello,
>> Am 26.05.2015 um 17:42 schrieb Jean-Christophe BEGUE <begue.jc@gmail.com>:
>> 
>> Hello,
>> 
>> I'm trying to pass a value from Barebox to the operating system, using
>> the usreland command bareboxenv -l.
>> 
>> My problem is : How should I write that status from my hush barebox script?
>> 
>> echo $mystatus > /env/data/my_status_file
> You can use the command nv to create non volatile shell variables. Don’t forget to save the Environment.
Additionally, a echo -a / -o might be useful in your case.
-a <file>",  "instead of outputting to stdout append to <file>
-o <file>",  "instead of outputting to stdout overwrite <file>
>> 
>> The above command doesn't work as '>' is not implemented.
>> 
>> I've the feeling that I'm missing something?
>> 
> To access the new variable (/env/nv/foo.bar) from userspace, you can use the „bareboxenv“ tool
> 
> Alexander Richter
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox

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  reply	other threads:[~2015-05-27  6:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-26 15:41 Jean-Christophe BEGUE
2015-05-27  6:08 ` Alexander Richter
2015-05-27  6:24   ` Alexander Richter [this message]
2015-05-27  6:53 ` Sascha Hauer
2015-05-27 13:52   ` Jean-Christophe BEGUE

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