(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:LC_ALL)
          op: assign_op.Equal
          rhs: {<C>}
          spids: [32]
        )
      ]
    )
    (C {<sed>} {<-n>} {<-e>} {(SQ <'s/^00*/0/'>)} {<-e>} 
      {(SQ <'s/^\\([0-9a-fA-F]*\\) . VDSO_\\([a-zA-Z0-9_]*\\)$/\\#define vdso_offset_\\2\\t0x\\1/p'>)}
    )
  ]
)