tools/src/main/java/org/apache/rocketmq/tools/command/export/ExportConfigsCommand.java [50:60]:
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    public Options buildCommandlineOptions(Options options) {
        Option opt = new Option("c", "clusterName", true, "choose a cluster to export");
        opt.setRequired(true);
        options.addOption(opt);

        opt = new Option("f", "filePath", true,
            "export configs.json path | default /tmp/rocketmq/export");
        opt.setRequired(false);
        options.addOption(opt);
        return options;
    }
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tools/src/main/java/org/apache/rocketmq/tools/command/export/ExportMetricsCommand.java [63:73]:
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    public Options buildCommandlineOptions(Options options) {
        Option opt = new Option("c", "clusterName", true, "choose a cluster to export");
        opt.setRequired(true);
        options.addOption(opt);

        opt = new Option("f", "filePath", true,
            "export metrics.json path | default /tmp/rocketmq/export");
        opt.setRequired(false);
        options.addOption(opt);
        return options;
    }
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