红帽全球峰会24.3. system:property
24.3.1. 描述
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获取或设置系统属性。
24.3.2. 语法
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system:property [options] [key] [value]
24.3.3. 参数
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| 名称 | 描述 |
|---|---|
| key | 系统属性名称 |
| value | 系统属性的新值 |
24.3.4. 选项
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| 名称 | 描述 |
|---|---|
| --help | 显示帮助信息 |
| -f, --file-dump | 转储文件中的所有系统属性（在 data 文件夹中） |
| -p, --persistent | 将新值保存到 etc/system.properties 文件中 |
| -u, --unset | 显示取消设置已知的属性（值为 unset） |
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