(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:basedir)
          op: assign_op.Equal
          rhs: 
            {
              (command_sub
                left_token: <Id.Left_Backtick '`'>
                child: (C {<dirname>} {($ Id.VSub_Number '$0')})
              )
            }
          spids: [21]
        )
      ]
    )
    (C {<source>} {(${ Id.VSub_Name basedir) <'/functions.sh'>})
    (C {<root_check_run_with_sudo>} {(DQ ($ Id.VSub_At '$@'))})
    (C {<source>} {(${ Id.VSub_Name basedir) <'/parameters.sh'>})
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {<-z>} {(DQ ($ Id.VSub_DollarName '$DEST_IP'))} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:DEST_IP)
              op: assign_op.Equal
              rhs: {(DQ <198.18.0.42>)}
              spids: [69]
            )
          ]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {<-z>} {(DQ ($ Id.VSub_DollarName '$DST_MAC'))} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:DST_MAC)
              op: assign_op.Equal
              rhs: {(DQ <'90:e2:ba:ff:ff:ff'>)}
              spids: [86]
            )
          ]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {<-z>} {(DQ ($ Id.VSub_DollarName '$CLONE_SKB'))} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:CLONE_SKB)
              op: assign_op.Equal
              rhs: {(DQ <0>)}
              spids: [103]
            )
          ]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {<-z>} {(DQ ($ Id.VSub_DollarName '$FLOWS'))} {<Id.Lit_RBracket ']'>})
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:FLOWS)
              op: assign_op.Equal
              rhs: {(DQ <8000>)}
              spids: [136]
            )
          ]
        )
      ]
    )
    (command.AndOr
      ops: [Id.Op_DAmp]
      children: [
        (C {<Id.Lit_LBracket '['>} {<-z>} {(DQ ($ Id.VSub_DollarName '$FLOWLEN'))} 
          {<Id.Lit_RBracket ']'>}
        )
        (command.ShAssignment
          pairs: [
            (assign_pair
              lhs: (sh_lhs_expr.Name name:FLOWLEN)
              op: assign_op.Equal
              rhs: {(DQ <10>)}
              spids: [153]
            )
          ]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:DELAY)
          op: assign_op.Equal
          rhs: {(DQ <0>)}
          spids: [162]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:COUNT)
          op: assign_op.Equal
          rhs: {(DQ <0>)}
          spids: [170]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      expr: 
                        (bool_expr.Unary
                          op_id: Id.BoolUnary_n
                          child: {(DQ ($ Id.VSub_DollarName '$BURST'))}
                        )
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          action: [(C {<err>} {<1>} {(DQ <'Bursting not supported for this mode'>)})]
          spids: [179 192]
        )
      ]
    )
    (C {<pg_ctrl>} {(DQ <reset>)})
    (command.ForExpr
      init: 
        (arith_expr.BinaryAssign
          op_id: Id.Arith_Equal
          left: <Id.Lit_ArithVarLike thread>
          right: {<Id.Lit_Digits 0>}
        )
      cond: 
        (arith_expr.Binary
          op_id: Id.Arith_Less
          left: <Id.Lit_ArithVarLike thread>
          right: {($ Id.VSub_DollarName '$THREADS')}
        )
      update: (arith_expr.UnaryAssign op_id:Id.Node_PostDPlus child:<Id.Lit_ArithVarLike thread>)
      body: 
        (command.DoGroup
          children: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:dev)
                  op: assign_op.Equal
                  rhs: {(${ Id.VSub_Name DEV) <Id.Lit_At '@'> (${ Id.VSub_Name thread)}
                  spids: [245]
                )
              ]
            )
            (C {<pg_thread>} {($ Id.VSub_DollarName '$thread')} {(DQ <rem_device_all>)})
            (C {<pg_thread>} {($ Id.VSub_DollarName '$thread')} {(DQ <add_device>)} 
              {($ Id.VSub_DollarName '$dev')}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'flag QUEUE_MAP_CPU'>)})
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'count '> ($ Id.VSub_DollarName '$COUNT'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'clone_skb '> ($ Id.VSub_DollarName '$CLONE_SKB'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'pkt_size '> ($ Id.VSub_DollarName '$PKT_SIZE'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'delay '> ($ Id.VSub_DollarName '$DELAY'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'flag NO_TIMESTAMP'>)})
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'dst_mac '> ($ Id.VSub_DollarName '$DST_MAC'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'dst '> ($ Id.VSub_DollarName '$DEST_IP'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'flag IPSRC_RND'>)})
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'src_min 198.18.0.0'>)})
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'src_max 198.19.255.255'>)})
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'flows '> ($ Id.VSub_DollarName '$FLOWS'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} 
              {(DQ <'flowlen '> ($ Id.VSub_DollarName '$FLOWLEN'))}
            )
            (C {<pg_set>} {($ Id.VSub_DollarName '$dev')} {(DQ <'flag FLOW_SEQ'>)})
          ]
        )
    )
    (command.ShFunction
      name: print_result
      body: 
        (BraceGroup
          children: [
            (command.ForExpr
              init: 
                (arith_expr.BinaryAssign
                  op_id: Id.Arith_Equal
                  left: <Id.Lit_ArithVarLike thread>
                  right: {<Id.Lit_Digits 0>}
                )
              cond: 
                (arith_expr.Binary
                  op_id: Id.Arith_Less
                  left: <Id.Lit_ArithVarLike thread>
                  right: {($ Id.VSub_DollarName '$THREADS')}
                )
              update: 
                (arith_expr.UnaryAssign
                  op_id: Id.Node_PostDPlus
                  child: <Id.Lit_ArithVarLike thread>
                )
              body: 
                (command.DoGroup
                  children: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:dev)
                          op: assign_op.Equal
                          rhs: {(${ Id.VSub_Name DEV) <Id.Lit_At '@'> (${ Id.VSub_Name thread)}
                          spids: [511]
                        )
                      ]
                    )
                    (C {<echo>} {(DQ <'Device: '> ($ Id.VSub_DollarName '$dev'))})
                    (command.Pipeline
                      children: [
                        (C {<cat>} {<'/proc/net/pktgen/'> ($ Id.VSub_DollarName '$dev')})
                        (C {<grep>} {<-A2>} {(DQ <'Result:'>)})
                      ]
                      negated: F
                    )
                  ]
                )
            )
          ]
        )
    )
    (C {<trap>} {<true>} {<SIGINT>})
    (command.Simple
      words: [{<echo>} {(DQ <'Running... ctrl^C to stop'>)}]
      redirects: [(redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
      do_fork: T
    )
    (C {<pg_ctrl>} {(DQ <start>)})
    (C {<print_result>})
  ]
)