(CommandList children: [ (C {(set)} {(-o)} {(errexit)}) (C {(set)} {(-o)} {(nounset)}) (C {(set)} {(-o)} {(pipefail)}) (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:KUBE_ROOT) op: Equal rhs: { (BracedVarSub token: <VSub_Name KUBE_ROOT> suffix_op: (StringUnary op_id: VTest_ColonHyphen arg_word: { (CommandSubPart command_list: (CommandList children: [(C {(dirname)} {(DQ (${ VSub_Name BASH_SOURCE))})] ) left_token: <Left_CommandSub '$('> spids: [67 75] ) (Lit_Slash /) (..) } ) spids: [64 78] ) } spids: [63] ) ] spids: [63] ) (C {(source)} {(DQ (${ VSub_Name KUBE_ROOT) (/cluster/kube-util.sh))}) (C {(source)} {(DQ (${ VSub_Name KUBE_ROOT) (/cluster/clientbin.sh))}) (If arms: [ (if_arm cond: [ (Sentence child: (DBracket expr: (BoolUnary op_id: BoolUnary_z child: { (DQ (BracedVarSub token: <VSub_Name KUBEADM_PATH> suffix_op: (StringUnary op_id:VTest_ColonHyphen arg_word:{(SQ )}) spids: [112 115] ) ) } ) ) terminator: <Op_Semi ';'> ) ] action: [ (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:kubeadm) op: Equal rhs: { (CommandSubPart command_list: (CommandList children: [(C {(get_bin)} {(DQ (kubeadm))} {(DQ (cmd/kubeadm))})] ) left_token: <Left_CommandSub '$('> spids: [125 137] ) } spids: [124] ) ] spids: [124] ) (If arms: [ (if_arm cond: [ (Sentence child: (DBracket expr: (LogicalNot child: (BoolUnary op_id:BoolUnary_x child:{(DQ ($ VSub_Name '$kubeadm'))}) ) ) terminator: <Op_Semi ';'> ) ] action: [(C {(print_error)} {(DQ (kubeadm))}) (C {(exit)} {(1)})] spids: [16777215 156] ) ] spids: [16777215 171] ) ] spids: [16777215 121] ) (if_arm cond: [ (Sentence child: (DBracket expr: (LogicalNot child: (BoolUnary op_id:BoolUnary_x child:{(DQ (${ VSub_Name KUBEADM_PATH))}) ) ) terminator: <Op_Semi ';'> ) ] action: [ (BraceGroup children: [ (C {(echo)} { (DQ ("KUBEADM_PATH environment variable set to '") (${ VSub_Name KUBEADM_PATH) ("', but ") ) } ) (C {(echo)} {(DQ ("this doesn't seem to be a valid executable."))}) ] redirects: [(Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[216])] spids: [193] ) (C {(exit)} {(1)}) ] spids: [173 190] ) ] spids: [16777215 224] ) (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:kubeadm) op: Equal rhs: { (DQ (BracedVarSub token: <VSub_Name KUBEADM_PATH> suffix_op: (StringUnary op_id:VTest_ColonHyphen arg_word:{(${ VSub_Name kubeadm)}) spids: [228 234] ) ) } spids: [226] ) ] spids: [226] ) (C {(DQ (${ VSub_Name kubeadm))} { (DQ (BracedVarSub token: <VSub_At '@'> suffix_op: (StringUnary op_id:VTest_Plus arg_word:{($ VSub_At '$@')}) spids: [245 249] ) ) } ) ] )