(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 ) ] )