系统管理员 2022-12-06 15:36 147阅读 0赞

启用目录浏览

It's very simple to print a list of all files in a [directory][] using the built-in Perl glob function. Let's look over a short script that globs and prints a list of all files, in the directory containing the script itself.

这是非常简单的打印在所有文件的清单[目录中][directory]使用内置的Perl水珠功能。 让我们看一个简短的脚本，该脚本在包含脚本本身的目录中遍历并打印所有文件的列表。

## Perl Glob函数的示例 **(** Examples of the Perl Glob Function **)** ##

#!/usr/bin/perl -w
     @files = <*>;
     foreach $file (@files) {
        
       print $file . "\n";
     }

When you run the program, you'll see it output the filenames of all files in the directory, one per line. The glob is happening on the first line, as the **<\*>** characters pulls the filenames into the @files array.

运行该程序时，您会看到它输出目录中所有文件的文件名，每行一个。 当**<\*>**字符将文件名拖到@files数组中时，就会在第一行发生全局错误。

@files = <*>;

Then you simply use a [foreach loop][] to print out the files in the array.

然后，您只需使用[foreach循环][foreach loop]即可打印出阵列中的文件。

You can include any path in your filesystem between the <> marks. For example, say your website is in the /var/www/htdocs/ directory and you want a list of all the files:

您可以在文件系统中的<>标记之间包括任何路径。 例如，假设您的网站在/ var / www / htdocs /目录中，并且您想要所有文件的列表：

@files = </var/www/htdocs/*>;

Or if you just want a list of the files with the extension .html:

或者，如果您只想要扩展名为.html的文件列表：

@files = </var/www/htdocs/*.html>;

> 翻译自: [https://www.thoughtco.com/globbing-a-directory-2641092][https_www.thoughtco.com_globbing-a-directory-2641092]

启用目录浏览

[directory]: https://www.thoughtco.com/telling-file-or-directory-perl-2641089
[foreach loop]: https://www.thoughtco.com/foreach-beginning-perl-tutorial-control-structures-2641141
[https_www.thoughtco.com_globbing-a-directory-2641092]: https://www.thoughtco.com/globbing-a-directory-2641092