(Com {[LIT_CHARS sed]} {[LIT_CHARS -r]} {[LIT_CHARS -f]} {[ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub 0]]})] [LIT_CHARS /] [ComSub (Com {[LIT_CHARS basename]} {[DQ [VarSub 0]]} {[LIT_CHARS sh]})] [LIT_CHARS sed]})