(command.CommandList children: [ (command.If arms: [ (if_arm cond: [ (command.Sentence child: (C {(Id.Lit_LBracket '[')} {($ Id.VSub_Pound '$#')} {(-ne)} {(1)} {(Id.Lit_RBracket ']')}) terminator: (Token id:Id.Op_Semi val:';' span_id:23) ) ] action: [ (command.Simple words: [ {(echo)} { (DQ ('Usage: ') (command_sub left_token: (Token id:Id.Left_Backtick val:'`' span_id:32) command_list: (command.CommandList children: [(C {(basename)} {($ Id.VSub_Number '$0')})] ) ) (' path') ) } ] redirects: [ (redir.Redir op: (Token id:Id.Redir_GreatAnd val:'>&' span_id:42) fd: -1 arg_word: {(2)} ) ] ) (command.ControlFlow token: (Token id:Id.ControlFlow_Exit val:exit span_id:46) arg_word: {(1)} ) ] spids: [12 25] ) ] ) (command.Pipeline children: [ (C {(stat)} {($ Id.VSub_Number '$1')}) (C {(sed)} {(-n)} {(SQ (Token id:Id.Lit_Chars val:'s/^Access: (\\([0-9]\\{1,\\}\\).*/\\1/p' span_id:64))} ) ] negated: F ) ] )