标准输入流

stdin是标准输入流，为命令提供输入。

Stdin is the standard input stream , which provides input to commands .

许多文本处理命令（过滤器）可以从标准输入流或从文件中获取输入。

Many text processing commands ( filters ) can take input either from the standard input stream or from a file .

当从多个文件或标准输入流创建输出时，可以使用当前日期和时间替换文件名和创建日期。

When output is created from multiple files or the standard input stream , the current date and time are used instead of the filename and creation date .

在管道符后面，切换到另一个目录，然后从标准输入提取字节流。

After the pipe , change to a different directory and then extract the byte stream again from the standard input .

当您在Shell中使用<操作符将程序输入重定向到文件时，就可以将该文件中的内容输入到该程序的标准输入（stdin）流。

When you redirect a program 's input from a file using the < operator in a shell , you 're pulling the file 's contents into its standard input ( stdin ) stream .

与DVB-C相比，该标准不仅支持多种输入流和可变的编码调制、自适应编码调制，还能够在有限的复杂程度下拥有更好的性能，以及更大的传输能力和灵活性。

Compared with DVB-C , this standard not only supports multiple input streams , variable coding and modulation , adaptive coding and modulation , can also have better performance , greater transmission capacity and flexibility .

另一个常用于重定向标准流的操作符是（管道）操作符，它可以将左侧程序的标准输出流连接到右侧程序的标准输入流。

The other common operator for redirecting the standard streams is the | ( pipe ) operator , which connects the standard output stream of the program on the left hand side to the standard input stream of the program on the right .