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* hush command output string
@ 2012-12-14  8:01 guenter.gebhardt
  2012-12-14  8:40 ` Sascha Hauer
  0 siblings, 1 reply; 2+ messages in thread
From: guenter.gebhardt @ 2012-12-14  8:01 UTC (permalink / raw)
  To: barebox


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Hello,

I want to write a hush script which evaluates standard output of some 
command, e.g.:

VARIABLE=$(command)

or

VARIABLE=`command`

How can this be done within hush?

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* Re: hush command output string
  2012-12-14  8:01 hush command output string guenter.gebhardt
@ 2012-12-14  8:40 ` Sascha Hauer
  0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2012-12-14  8:40 UTC (permalink / raw)
  To: guenter.gebhardt; +Cc: barebox

On Fri, Dec 14, 2012 at 09:01:08AM +0100, guenter.gebhardt@rafi.de wrote:
> Hello,
> 
> I want to write a hush script which evaluates standard output of some 
> command, e.g.:
> 
> VARIABLE=$(command)
> 
> or
> 
> VARIABLE=`command`
> 
> How can this be done within hush?

This can't be done. For this we would need output redirection, multiple
thread contexts, ...

In some commands we work around this by specifying the variable name on
the command line.

For example the readline command works like this:

Usage: readline <prompt> VAR
readline reads a line of user input into variable VAR.

Sascha

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