From owner-freebsd-questions  Fri Dec 17 21:12:52 1999
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Date: Sat, 18 Dec 1999 06:12:33 +0100 (CET)
From: Oliver Fromme <olli@dorifer.heim3.tu-clausthal.de>
Message-Id: <199912180512.GAA28012@dorifer.heim3.tu-clausthal.de>
To: freebsd-questions@freebsd.org
Subject: Re: howto tokenize string in sh
Cc: keramida@ceid.upatras.gr
Reply-To: freebsd-questions@freebsd.org
Organization: Administration TU Clausthal
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Giorgos Keramidas wrote in list.freebsd-questions:
 > sed(1) is your friend.  use something like:
 > 
 > 	VARIABLE="`echo $DIRNAME | sed -e 's@/@ @g'`"
 > 
 > then you can always use
 > 
 > 	set $VARIABLE

That's not a good idea, because it will break if the pathname
already contains spaces.

Another better possibility is to modify the shell's $IFS:

   OLD_IFS="$IFS"
   IFS=/
   set x $VARIABLE
   shift
   IFS="$OLD_IFS"

Note the "x" and the shift.  This prevents breakage of the
contents of $VARIABLE begins with a "-".  And do not forget
to reset $IFS to the old value, otherwise you ight run into
very strange effects.  ;-)

 > and use $1, $2 and so on for the parts of it, or something like:
 > 
 > 	for component in $VARIABLE ;do
 > 	    echo $component
 > 	done

Regards
   Oliver

-- 
Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany
(Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)

"In jedem Stück Kohle wartet ein Diamant auf seine Geburt"
                                         (Terry Pratchett)


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