rain1/s: simpler shell @ f9e438fe6a2957c67d3c8533920d8e26afc19714

rain1 a3c075d076 bound expanded token size too		8 lat temu
..
exponen.sh	a3c075d076 bound expanded token size too	8 lat temu
t1.expect	eff8291661 moved to an array. added a test	8 lat temu
t1.sh	eff8291661 moved to an array. added a test	8 lat temu