This command deletes files from the directory.

这一指令把文档从目录中删除。

《牛津词典》

Hence, command 7 expands the variable into two arguments and deletes both files.

因此，命令7把此变量展开成两个参数并删除两个文件。

youdao

This deletes the source code and class files that were used in the previous build.

这将删除前一次构建中使用的源代码和类文件。

youdao

Basically it's a USB security key that supposedly encrypts data stored to the thumb drive using AES, provides remote encrypted storage, creates a secure connection to the internet, and deletes your browser's cookies and history files.

ENGADGET: Mighty Key, the new secure USB snake oil?