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(AssignPair left: <Id.Lit_VarLike 'rc='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'rc='> name:rc) op: assign_op.Equal rhs: {($ Id.VSub_QMark '?')} ) ] redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.Binary op_id: Id.Arith_NEqual left: ($ Id.Lit_ArithVarLike rc) right: {<Id.Lit_Digits 0>} ) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <echo> more_env: [] words: [ {<echo>} { (DQ <'Something went wrong in getting '> (word_part.EscapedLiteral token: <Id.Lit_EscapedChar '\\$'> ch: '$' ) <'SHELL for '> ($ Id.VSub_DollarName SH_PROG) ) } ] redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) (command.ControlFlow keyword: <Id.ControlFlow_Exit exit> arg_word: {($ Id.VSub_DollarName rc)} ) ] spids: [64 79] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> 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.Unary op_id: Id.BoolUnary_z child: {($ Id.VSub_DollarName bash_loc)} ) right: <Id.Lit_DRightBracket ']]'> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <echo> more_env: [] words: [ {<echo>} { (DQ <'Something went wrong in setting bash location from '> (word_part.EscapedLiteral token: <Id.Lit_EscapedChar '\\$'> ch: '$' ) <'SHELL for '> ($ Id.VSub_DollarName SH_PROG) ) } ] redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<3>}) ] spids: [101 113] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 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