(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'PATH='> name:PATH)
          op: assign_op.Equal
          rhs: 
            {<'/bin'> <Id.Lit_Colon ':'> <'/usr/bin'> <Id.Lit_Colon ':'> <'/usr/lib/netsvc/yp'> 
              <Id.Lit_Colon ':'> ($ Id.VSub_DollarName PATH)
            }
          spids: [85]
        )
      ]
      redirects: []
    )
    (C {<export>} {<PATH>})
    (C {<ypxfr>} {<group.byname>})
    (C {<ypxfr>} {<group.bygid>})
    (C {<ypxfr>} {<protocols.byname>})
    (C {<ypxfr>} {<protocols.bynumber>})
    (C {<ypxfr>} {<networks.byname>})
    (C {<ypxfr>} {<networks.byaddr>})
    (C {<ypxfr>} {<services.byname>})
    (C {<ypxfr>} {<ypservers>})
  ]
)