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Re: exporting a variable to global shells



On Mon, May 14, 2007 at 02:49:21PM -0700, Bob McGowan wrote:
> Alex Samad wrote:
> >On Mon, May 14, 2007 at 09:13:32AM -0700, Bob McGowan wrote:
> >>cga2000 wrote:
> >>>On Fri, May 11, 2007 at 12:33:12PM EDT, Bob McGowan wrote:
> >>>
> >>><snip>
> >>>
> >>>> 3.  in the parent script, where you use your script, change it to be:
> 
> <and more snipped>
> 
> >>So:
> >>
> >>  $ echo a b c d | read x y z p
> >>  $ echo $x $y $z $p
> >>  a b c d
> >
> >what about something like
> >
> >set -- 1 2 3 4 5 6 7
> >for x
> >do
> >	echo $x
> >done
> >
> >
> >change 1 2 3 4 5 6 7 for what every number of variables you want ?
> >
> ---XXX---
> 
> Reminder:  the original poster wanted to have data passed backward (up 
> the process tree) from a child script to a parent.
> 
> Collecting the output of a command using 'command substitution' is most 
> easily handled as a single variable or line of data.  You can make the 
> method of passing the data out of the child as complex as you like, but 
> in the calling script:
> 
>   lineIn=$(child )
> 
> puts one long string in $lineIn, including newline characters, spaces, 
> tabs and so on.  The result, using your 'set...loop', would put newline 
> separated numbers into the returned string.
> 
> Further processing would then need be done on the string to break it up 
> into pieces, or not, as dictated by the needs of the caller.  My 'child 
> | read a b c d' is a quick way to read in the multiple lines output by 
> your method, or to break a long line up on any white space characters. 
> Without using the arrays suggested by another poster, which may not be 
> supported by all versions of Bourne type shells.

what about something like this


		NL='
'
		IFS=$NL
		set -- $(find "$IND" -regextype posix-egrep -type f -iregex ".*\.(ogg)"  
-printf "%P\n")
		unset IFS

		for x
		do
				dosomething with $x
		done


or they could be available with $* or ${1,2,3,4,5}




> 
> Bob


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