简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Backend Development > PHP Tutorial > body text

shell随机写入指定文件

WBOY
Release： 2016-06-06 20:45:28
Original
1023 people have browsed it

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/.*/$(sort -R file.txt | head -1)/" file.php
</code>
Copy after login
Related labels：
php shell
source：php.cn
Previous article：javascript的函数为什么不能像php那样先调用再申明？ Next article：php curl 抓網頁數據問題，聽說內地神人很多，求神人解
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
PHP arrays obtained from URL parameters do not behave as expected I have a URL parameter that contains the category ID and I want to treat it as an array li...
From 2024-04-06 22:09:02
0
1
1428
Where should I place CustomLog directive in apache I'm using php:7.2-apachedocker. I need to disable health check url login access log. Based...
From 2024-04-06 22:03:59
0
1
990
What is the format of the variables in the return value? I am a new learner of php. I found a piece of code: if($x<time()){return[false,'error']...
From 2024-04-06 21:55:20
0
1
778
Problems encountered when using opentbs to generate odt files: values ​​of the same key are displayed in the same row instead of separate columns. I'm using a library called OpenTbs to create odt using PHP, I'm using it because columns a...
From 2024-04-06 20:18:18
0
1
483
Group MySQL results by ID for looping over I have a table with flight data in mysql. I'm writing a php code that will group and displ...
From 2024-04-06 17:27:56
0
1
406
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！