[U-Boot-Users] Conditional 'hush' script examples anyone?
Wolfgang Denk
wd at denx.de
Thu Sep 11 11:11:03 CEST 2003
Dear Robin,
in message <3F601160.5050803 at tait.co.nz> you wrote:
>
> I've RTFM'd and I've FAQ'd but I still can't find a single example of
> the use of conditionals with the u-boot hush shell command line.
man sh :-)
> I assume its only usable with an autoscript or can environmental
What makes you think so?
> variables hold complete conditional blocks. Most interested in this so
> that I can make sensible decisions about what to do if an image CRC is
> bad for example (or when to boot a different image after an upgrade).
You can use conditionals everywhere: in interactive input, in
environment variables, in scripts ....
> Examples, examples, examples is what I'm looking for rather than a dry
> explanation about hush (which I can get close to from any book that
> documents bash!!)
See http://www.denx.de/twiki/bin/view/DULG/CommandLineParsing#Section_12.1.7.3.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
Was heißt Windows auf Indianisch? - "Weißer Mann, der auf Sanduhr
wartet!"
More information about the U-Boot
mailing list