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shell随机写入指定文件

WBOY
WBOYOriginal
2016-06-06 20:45:281066browse

具体思路如下,求代码
shell随机读取file.txt文本,file.txt文本有许多行文字
想用shell随机读取file.txt的任意一行文字并且写入到file.php第四行文件。
谢谢。

回复内容:

具体思路如下,求代码
shell随机读取file.txt文本,file.txt文本有许多行文字
想用shell随机读取file.txt的任意一行文字并且写入到file.php第四行文件。
谢谢。

假设你的 file.txt 里没有特殊字符:

<code class="lang-bash">sed -i -e "4s/.*/$(sort -R file.txt | head -1)/" file.php
</code>
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