(command.CommandList
  children: [
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<errexit>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<nounset>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <set>
      more_env: []
      words: [{<set>} {<-o>} {<pipefail>}]
      redirects: []
      do_fork: T
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'KUBE_ROOT='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'KUBE_ROOT='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'KUBE_ROOT='> name:KUBE_ROOT)
          op: assign_op.Equal
          rhs: 
            {
              (BracedVarSub
                left: <Id.Left_DollarBrace '${'>
                token: <Id.VSub_Name KUBE_ROOT>
                var_name: KUBE_ROOT
                suffix_op: 
                  (suffix_op.Unary
                    op: <Id.VTest_ColonHyphen _>
                    arg_word: 
                      {
                        (CommandSub
                          left_token: <Id.Left_DollarParen '$('>
                          child: 
                            (command.Simple
                              blame_tok: <dirname>
                              more_env: []
                              words: [{<dirname>} {(DQ (${ Id.VSub_Name BASH_SOURCE))}]
                              redirects: []
                              do_fork: T
                            )
                          right: <Id.Eof_RParen _>
                        ) <Id.Lit_Slash '/'> <..>
                      }
                  )
                right: <Id.Right_DollarBrace '}'>
              )
            }
        )
      ]
      redirects: []
    )
    (command.Simple
      blame_tok: <source>
      more_env: []
      words: [{<source>} {(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/kube-util.sh'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <source>
      more_env: []
      words: [{<source>} {(DQ (${ Id.VSub_Name KUBE_ROOT) <'/cluster/clientbin.sh'>)}]
      redirects: []
      do_fork: T
    )
    (command.If
      if_kw: <Id.KW_If if>
      arms: [
        (IfArm
          keyword: <Id.KW_If if>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      left: <Id.KW_DLeftBracket '[['>
                      expr: 
                        (bool_expr.Unary
                          op_id: Id.BoolUnary_z
                          child: 
                            {
                              (DQ 
                                (BracedVarSub
                                  left: <Id.Left_DollarBrace '${'>
                                  token: <Id.VSub_Name KUBEADM_PATH>
                                  var_name: KUBEADM_PATH
                                  suffix_op: (suffix_op.Unary op:<Id.VTest_ColonHyphen _> arg_word:(rhs_word__Empty))
                                  right: <Id.Right_DollarBrace '}'>
                                )
                              )
                            }
                        )
                      right: <Id.Lit_DRightBracket ']]'>
                      redirects: []
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (command.ShAssignment
              left: <Id.Lit_VarLike 'kubeadm='>
              pairs: [
                (AssignPair
                  left: <Id.Lit_VarLike 'kubeadm='>
                  lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'kubeadm='> name:kubeadm)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (CommandSub
                        left_token: <Id.Left_DollarParen '$('>
                        child: 
                          (command.Simple
                            blame_tok: <get_bin>
                            more_env: []
                            words: [{<get_bin>} {(DQ <kubeadm>)} {(DQ <'cmd/kubeadm'>)}]
                            redirects: []
                            do_fork: T
                          )
                        right: <Id.Eof_RParen _>
                      )
                    }
                )
              ]
              redirects: []
            )
            (command.If
              if_kw: <Id.KW_If if>
              arms: [
                (IfArm
                  keyword: <Id.KW_If if>
                  cond: 
                    (condition.Shell
                      commands: [
                        (command.Sentence
                          child: 
                            (command.DBracket
                              left: <Id.KW_DLeftBracket '[['>
                              expr: 
                                (bool_expr.LogicalNot
                                  child: 
                                    (bool_expr.Unary
                                      op_id: Id.BoolUnary_x
                                      child: {(DQ ($ Id.VSub_DollarName kubeadm))}
                                    )
                                )
                              right: <Id.Lit_DRightBracket ']]'>
                              redirects: []
                            )
                          terminator: <Id.Op_Semi _>
                        )
                      ]
                    )
                  then_kw: <Id.KW_Then then>
                  action: [
                    (command.Simple
                      blame_tok: <print_error>
                      more_env: []
                      words: [{<print_error>} {(DQ <kubeadm>)}]
                      redirects: []
                      do_fork: T
                    )
                    (command.ControlFlow
                      keyword: <Id.ControlFlow_Exit exit>
                      arg_word: {<1>}
                    )
                  ]
                  spids: [141 156]
                )
              ]
              else_action: []
              fi_kw: <Id.KW_Fi fi>
              redirects: []
            )
          ]
          spids: [105 121]
        )
        (IfArm
          keyword: <Id.KW_Elif elif>
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (command.DBracket
                      left: <Id.KW_DLeftBracket '[['>
                      expr: 
                        (bool_expr.LogicalNot
                          child: 
                            (bool_expr.Unary
                              op_id: Id.BoolUnary_x
                              child: {(DQ (${ Id.VSub_Name KUBEADM_PATH))}
                            )
                        )
                      right: <Id.Lit_DRightBracket ']]'>
                      redirects: []
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          then_kw: <Id.KW_Then then>
          action: [
            (BraceGroup
              left: <Id.Lit_LBrace '{'>
              children: [
                (command.Simple
                  blame_tok: <echo>
                  more_env: []
                  words: [
                    {<echo>}
                    {
                      (DQ <'KUBEADM_PATH environment variable set to \''> 
                        (${ Id.VSub_Name KUBEADM_PATH) <'\', but '>
                      )
                    }
                  ]
                  redirects: []
                  do_fork: T
                )
                (command.Simple
                  blame_tok: <echo>
                  more_env: []
                  words: [{<echo>} {(DQ <'this doesn\'t seem to be a valid executable.'>)}]
                  redirects: []
                  do_fork: T
                )
              ]
              redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
              right: <Id.Lit_RBrace '}'>
            )
            (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [173 190]
        )
      ]
      else_action: []
      fi_kw: <Id.KW_Fi fi>
      redirects: []
    )
    (command.ShAssignment
      left: <Id.Lit_VarLike 'kubeadm='>
      pairs: [
        (AssignPair
          left: <Id.Lit_VarLike 'kubeadm='>
          lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'kubeadm='> name:kubeadm)
          op: assign_op.Equal
          rhs: 
            {
              (DQ 
                (BracedVarSub
                  left: <Id.Left_DollarBrace '${'>
                  token: <Id.VSub_Name KUBEADM_PATH>
                  var_name: KUBEADM_PATH
                  suffix_op: 
                    (suffix_op.Unary
                      op: <Id.VTest_ColonHyphen _>
                      arg_word: {(${ Id.VSub_Name kubeadm)}
                    )
                  right: <Id.Right_DollarBrace '}'>
                )
              )
            }
        )
      ]
      redirects: []
    )
    (command.Simple
      blame_tok: <Id.Left_DoubleQuote '"'>
      more_env: []
      words: [
        {(DQ (${ Id.VSub_Name kubeadm))}
        {
          (DQ 
            (BracedVarSub
              left: <Id.Left_DollarBrace '${'>
              token: <Id.VSub_At '@'>
              var_name: '@'
              suffix_op: (suffix_op.Unary op:<Id.VTest_Plus _> arg_word:{($ Id.VSub_At '@')})
              right: <Id.Right_DollarBrace '}'>
            )
          )
        }
      ]
      redirects: []
      do_fork: T
    )
  ]
)