它从标准输入逐行读取数据。
从标准输入读取以下格式的用户名和密码
The user and password are read from the standard input in the format
tarxf-从标准输入中提取文件。
默认情况下，lex会从标准输入进行读取。
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.
lpr命令将获取到的标准输入，发送到打印机处。
远程执行还模拟客户端主机的标准输入、输出和错误。
Remote execution also emulates the standard input, output, and error of the client host.
很多命令是从一个叫做标准输入的设备中接收输入信息的。
Many commands can accept input from a facility called standard input.
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.
它还安排一个管道，把主服务的标准输出作为日志进程的标准输入。
It also arranges for a pipe to carry the standard output from the main service to the log process's standard input.
如果命令行上没有给出文件名参数，我们就使用标准输入。
If a filename arg was not given on the command line, we use stdin.
在恢复过程中，ontape从stdin(标准输入)读取数据。
During a restore, ontape reads data from stdin (standard input).
如果没有其它参数，则selpg假定输入来自标准输入。
If there is not another arg, selpg assumes input is from stdin.
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.
在那个例子中我们使用来自cat命令的输出为tr命令创建标准输入。
In that example we used the output from the cat command to create standard input for the tr command.
“-”指定tar应该使用标准输出(在写时)或标准输入(在读时)。
The "-" in each case specifies that tar should use the standard output (when writing) or standard input (when reading).
您可能需要调整键盘重复率和延迟，或寻求不同于标准输入机制的新方法。
You may have to alter your keyboard repeat rate and delay, or find a new method altogether, than standard input mechanisms.
然而，这里的——extract——file-从标准输入读取存档。
Here, however, — extract — file - reads the archive from standard input.
这意味着所有来自selpg进程的标准输出将进入lp进程的标准输入。
What this means is that all standard output from our selpg process will go to the standard input of the lp process.
如果您指定“-”作为XML文档的源，命令将从标准输入中读取xml源。
If you specify "-" as the source for the XML document, the command will read the XML source from standard input. Next, create the template XSLT document, as shown below.
使用cat(其名称表示“连接”)来连接文件和标准输入流，如清单1所示。
Use cat, whose name stands for together, to concatenate files and standard input streams, as in Listing 1.
但是sort和uniq则需要从标准输入设备(stdin)请求数据输入。
However, both sort and uniq require data entry or input from the standard input device (stdin).
可以使用标准输入来运行的大多数程序也完全可以针对单个文件或一组文件运行。
Most programs that can run from standard input can also reasonably be run on a single file, or possibly on a group of files.
第二种机制在命令行参数输出的指令控制下，把自己标准输入中的行写入日志文件。
It writes lines from its standard input to log files under the control of instructions you enter as command-line arguments.
为了生活在管道中，实用程序需要从标准输入读取数据，然后向标准输出写出数据。
To live in a pipeline, a utility needs to read data from standard input and write data to standard output.
来自TCP连接的流是命令的标准输入，命令的标准输出通过TCP连接发送回去。
The stream coming from the TCP connection is the command's standard input, and the command's standard output is sent back through the TCP connection.
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.
“other_command”可以是任何其它能从其标准输入读取的命令。
And it could be any other command that can read from its stdin.
如果没有给定文件，它就从标准输入中读入内容，如果给定了文件名就从文件中读入内容。
It reads from standard input if no files are given, or if given a filename of -.
如果没有给定文件，它就从标准输入中读入内容，如果给定了文件名就从文件中读入内容。
It reads from standard input if no files are given, or if given a filename of -.
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