> For the complete documentation index, see [llms.txt](https://kawsing.gitbook.io/opensystem/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kawsing.gitbook.io/opensystem/andoid-shou-ji/untitled-4/shi-yong-nmcli-jian-ce-wifi/jian-ce-wifi-de-you-yong-gong-ju.md).

# 檢測wifi的有用工具

```
iwconfig wlan0 | grep -i --color signal
Link Quality=62/70  Signal level=-48 dBm

Link Quality:實際的和理想的比值
```