# $FreeBSD: releng/12.1/bin/sh/tests/builtins/lineno.0 179023 2008-05-15 19:58:44Z stefanf $
echo $LINENO
echo $LINENO

f() {	
	echo $LINENO
	echo $LINENO
}

f

echo ${LINENO:-foo}
echo ${LINENO=foo}
echo ${LINENO:+foo}
echo ${LINENO+foo}
echo ${#LINENO}