[uw.mfcf.bugs] showpath; deletes null path

idallen@watcgl.waterloo.edu (08/25/89)

From: "Ian! D. Allen [CGL]" <idallen>

$ PATH=/bin::a:b showpath
/bin:a:b
$ PATH=/bin:a:b: showpath
/bin:a:b
$ PATH=:/bin:a:b showpath
/bin:a:b

The null path has traditionally stood for "." to Bourne shells.