shell prompt

If you keep your shell window open for extended periods, you can quickly repeat a previous command with! nnn, where nnn is the number shown in the prompt for the command.

如果shell窗口打开的时间较长，可以用！nnn快速重复前面的命令，其中的nnn是命令提示符中显示的编号。

In the examples used so far, the shell prompt is set to the hash, or pound, symbol (#).

目前为止，示例中的shell提示都设置为正斜杠、英镑符号、或符号。

but if you include $pwd in your shell prompt, you always know what directory you're in.

但是，如果您在shell提示中包含$PWD，您就总是知道您当前所处的目录。

If at any stage you are looking for some help, you can simply issue the command "help" to the Mongo shell prompt.

如果您在某个阶段需要帮助，只需要在Mongo shell提示符下发出“help”命令。

Keying in this sequence displays the following at the shell prompt: echo "^ [] 2; Hello^ G".

输入这个命令序列，就会在shell提示上显示以下内容：echo“^[]2；Hello^G”。

notice how the shell prompt shows the new value for $pwd.

注意，shell提示是如何显示$PWD的新值的。

Type netsh winsock reset in the Command Prompt shell, and then press the Enter key.

键入netshWinsock的重置在命令提示符壳, 然后按下回车键.

here's why: you can display the value of $pwd as part of the shell prompt.

原因是：可以将$PWD的值显示为shell提示的一部分。

To demonstrate stdin and stdout, type the following text in your terminal window ( assume that the leading percent sign (%) is your shell prompt)

为了说明stdin和stdout，您可在终端窗口中输入以下文本（假设前面的百分号（%）为您的shell提示符）

from a shell prompt, you can display the path name of the directory you're in by running the command pwd, shown in listing 1.

从shell提示，您可以显示您所在的目录的路径名，方法是运行命令pwd，如清单1所示。

The leading dollar sign is the shell prompt.

开头的美元符号是Shell提示符。

And yet, here I am with a shell prompt on an eight-way multiprocessor system with RAID drives, 32GB of memory ( hey, it looks huge to me), and two months of uptime.

现在呢，我却正在一台具有RAID磁盘、32GB内存（对我来说这可真大）并运行了2个月的8路多处理器系统上使用一个shell提示符。

then, when you run cd, the variable pwd will be updated and displayed as part of the shell prompt.

然后，当您运行cd时，变量PWD将被更新并显示为shell提示的一部分。