The leading dollar sign is the shell prompt.

开头的美元符号是Shell提示符。

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Note: In the examples that follow, the "$" sign represents the shell prompt and is not to be typed.

注：在接下来的那些示例中，“$”符号代表shell提示符，不必输入它。

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Downsides? Only certain carrier networks are compatible, and you'll have to shell out a monthly fee and possibly sign a service contract.

问及它的负面，这种网络需要特定兼容的网络制式，同时你不得不花费一定的月费来使用这个服务，也许还要签份服务使用合同。

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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)。

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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)。

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