arthas/tutorials/katacoda/command-sysprop-cn/check-one-single-property.md

`sysprop java.version`{{execute T2}} 

```bash
$ sysprop java.version
java.version=1.8.0_51
```

## 修改单个属性

`sysprop user.country`{{execute T2}} 

`sysprop user.country CN`{{execute T2}} 

```bash
$ sysprop user.country
user.country=US
$ sysprop user.country CN
Successfully changed the system property.
user.country=CN
```