为什么第二个命令打印出而不是4 ？
例如，echo和print命令打印到标准输出。
For example, the echo and the print command print to standard output.
命令打印出当前目录下的所有文件和目录列表。
The find . command prints out the list of all files and directories in the current directory and under.
我们使用sleep命令将显示推迟两秒，然后使用date命令打印当前的日期和时间。
We use the sleep command to cause a delay for two seconds, and use the date command to print the current date and time.
此循环迭代这个数组并打印每一行，与它在命令行上所做的无异，只不过在每次打印后均强制使用一个xhtml断行元素。
The loop simply iterates through the array and prints each line as it would do on the command line, but enforcing an XHTML break-line element after each print.
该程序将流程模板的名称作为命令行参数，并且打印出了所有相对应的流程实例的启动时间。
The program takes the name of a process template as a command line parameter and prints out start times of all of the corresponding process instances.
通过命令行在AIX中创建打印队列是一件非常简单的事。
Creating a print queue in AIX via command line is extremely easy.
是否有个命令来打印？
STDOUT是执行一个命令时打印到屏幕上的输出。
STDOUT is the output that prints to the screen when a command works.
告诉打印命令仅将每个用户名依次追加到一个文件中。
tells the print command to append each username one after another to a file only.
以下命令将把此文件转储为数组，然后打印该数组
The following commands would dump this file into an array, then print that array
下面的方法在对雇员数据的创建、更新和删除操作之间打印文本到命令行，并等待用户输入。
The following method prints text to the command line and waits for user input between the creation, update, and deletion of the employee's data.
通过使用piolsvp命令，您可以查看现有打印队列或可用的连接类型。
By using the piolsvp command, you can view existing print queues or available attachment types.
一旦将一行读入模式缓冲区，它就执行'd '命令，然后打印模式缓冲区的内容(在本例中没有内容)。
Once a line was read into the pattern buffer, it performed the 'd' command and printed the contents of the pattern buffer (nothing in this example).
现在您已经连了解了基本命令，让我们创建一个新打印队列。
Now that you know the basic commands, create a new print queue.
在此提示符下，通常可使用help命令，这将打印出更详细的帮助。
The help command is usually available at the prompt and will print out more detailed help.
print_r —此命令只简单地打印所有变量，包括其结构。
print_r — This command simply prints any variable, including its structure.
Mac用户能够轻易地使用任何支持打印命令的程序来建立PD F文件。
Mac users can easily create PDF files with any program that supports the Print command.
要在域之间使用短横线代替冒号来打印这个文件的内容，命令如下。
To print the file using a dash in place of the colon delimiter between fields, the command is.
该消息来自lp命令；它显示打印作业标识。
This message is from the lp command; it shows the print job id.
puts只是“打印字符串(print string)”命令。
在这个例子中，我们调用了pwd(打印工作目录)命令，使用BusyBox进入了ashshell，并在a sh中调用了pwd。
In this example, you invoke the PWD (print working directory) command, enter the ash shell within BusyBox, and invoke PWD within ash.
dmesg命令也可用于打印和控制内核环缓冲区。
The dmesg command can also be used to print and control the kernel ring buffer.
它将打印状态信息并将sleep命令发送给SIGINT信号。
It prints a status message and sends the sleep command a SIGINT signal.
命令history- 2打印出前两个命令。
后者将打印由cat命令后所列文件组成的输入流中指定行数的内容，但将把输入流作为单个文件对待。
The latter will print the specified number of lines from the input stream made up of the files listed after the cat command, but treated as one single file.
如果没有打印机驱动程序，应用程序生成的命令将被直接打印成文本，从而造成纸张浪费。
Without the printer driver, the commands that the application generates will be printed directly as text, resulting in reams of garbage.
此命令不会改变打印机的状态；相反，它会告诉CUPS拒绝传入的作业。
This command does not change the status of the printer; instead, it tells CUPS to reject incoming jobs.
您永远不应立即运行一行程序；在您真正运行命令之前应该总是先打印出该命令会执行什么内容。
You should never run a one-liner outright; always print out what it will do before you actually run the command.
您永远不应立即运行一行程序；在您真正运行命令之前应该总是先打印出该命令会执行什么内容。
You should never run a one-liner outright; always print out what it will do before you actually run the command.
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