>Number:         809
>Category:       bin
>Synopsis:       If you alter $IFS in sh it breaks
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 20 10:35:01 1995
>Originator:     David Brownlee
>Organization:
Private
>Release:        Feb-95
>Environment:
sparc, 1.0A, current
System: NetBSD gluon.city.ac.uk 1.0A NetBSD 1.0A (GLUON) #1: Thu Feb 9 11:25:40 GMT 1995 monoadm@gluon.city.ac.uk:/mono/u1/NetBSD/src/sys/arch/sparc/compile/GLUON sparc


>Description:
	If you add : to the start of IFS then shell no longer treats multiple
	blanks correctly - it splits out empty arguments between each blank.

>How-To-Repeat:
	Run the following script - & watch the blank line between a & b on the
	'changed IFS' run.

	#!/bin/sh
	list="a  b c "
	echo "With ordinary IFS"
	for i in $list;do
    	    echo $i
	done
	IFS=":${IFS}"
	echo "With changed IFS"
	for i in $list;do
    	    echo $i
	done

>Fix:
>Audit-Trail:
>Unformatted: