# renice

修改正在运行的进程的调度优先级

## 补充说明

**renice命令** 可以修改正在运行的进程的调度优先级。预设是以程序识别码指定程序调整其优先权，您亦可以指定程序群组或用户名称调整优先权等级，并修改所有隶属于该程序群组或用户的程序的优先权。只有系统管理者可以改变其他用户程序的优先权，也仅有系统管理者可以设置负数等级。

### 语法

```
renice(选项)(参数)
```

### 选项

```
-g：指定进程组id；
-p<程序识别码>：改变该程序的优先权等级，此参数为预设值。
-u：指定开启进程的用户名。
```

### 参数

进程号：指定要修改优先级的进程。

### 实例

将行程id为987及32的行程与行程拥有者为daemon及root的优先序号码加1：

```
renice 1 987 -u daemon root -p 32
```

注意：每一个行程都有一个唯一的id。


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