# Linux小技巧

## 优雅的清空日志

```
cat /dev/null > xxx.log
```

## 磁盘沾满但是找不到大文件

这种情况可能是文件被删掉了，但是仍然被进程占用，磁盘空间没有释放导致的，删掉占用进程就可以了。查找删除文件的占用进程：

```
lsof|grep del
```

> 参考：
>
> <https://www.cnblogs.com/276815076/p/3503923.html>


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