(command.CommandList children: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:BASE64_ENC) op: assign_op.Equal rhs: { (command_sub left_token: <Id.Left_DollarParen '$('> command_list: (command.CommandList children: [ (command.Pipeline children: [ (C {<cat>} {<nrconfig.env>}) (C {<base64>}) (C {<tr>} {<-d>} {(SQ <'\\n'>)}) ] negated: F ) ] ) ) } spids: [48] ) ] ) (command.Simple words: [ {<sed>} {<-e>} {(DQ <'s#{{config_data}}#'> (${ Id.VSub_Name BASE64_ENC) <'#g'>)} {<./newrelic-config-template.yaml>} ] redirects: [(redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<newrelic-config.yaml>})] ) ] )