虽然这个单命令行程序非常简单,但是它的缺点在于创建了一个新文件。
Although it's simple, the disadvantage of this one-liner is that it creates a new file.
当在电子邮件消息或usenet文章中使用时,前述单命令行程序将除去所有标头。
When used on E-mail messages or Usenet articles, the preceding one-liner strips out all headers.
通过从UNIX命令行运行单命令行程序,可以利用多种有意义和复合的方式(无需编辑器)对文本文件进行编辑。
Text files can be edited in significant and complex ways without an editor by running one-liners from the UNIX command line.
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