(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:locatedb)
          op: assign_op.Equal
          rhs: {(DQ (/tmp/locate.db))}
          spids: [7]
        )
      ]
    )
    (C {(exec)} {(grep)} {(-i)} {(DQ ($ Id.VSub_At '$@'))} {($ Id.VSub_DollarName '$locatedb')})
  ]
)