> For the complete documentation index, see [llms.txt](https://bash.netdpi.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bash.netdpi.net/di-er-bu-ji-chu/di-si-zhang-bian-shu-yu-can-shu/4.1-bian-shu.md).

# 4.1 變數

變數的名稱是它的值（它所儲存的資料）的預留位置。參考（擷取）其值稱為變數替代。

$

我們仔細判斷變數的名稱與其值，若變數的名稱是 variable1，則 $variable1 可以取其值，即變數儲存的資料。\[1]

{% code lineNumbers="true" %}

```bash
bash$ variable1=23

bash$ echo variable1
variable1

bash$ echo $variable1
23
```

{% endcode %}

(TBC)


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