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arthas/tutorials/katacoda/command-help-cn/help-sysprop.md

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比如查看`sysprop`命令的帮助信息:
`help sysprop`{{execute T2}}
```bash
[arthas@50759]$ help sysprop
USAGE:
sysprop [-h] [property-name] [property-value]
SUMMARY:
Display, and change the system properties.
EXAMPLES:
sysprop
sysprop file.encoding
sysprop production.mode true
WIKI:
https://alibaba.github.io/arthas/sysprop
OPTIONS:
-h, --help this help
<property-name> property name
<property-value> property value
```
可以看到具体的命令的参数示例和WKI地址。