The leading dollar sign is the shell prompt.

开头的美元符号是Shell提示符。

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Any phone with a shell prompt is a must have.

一切拥有命令提示功能的手机都是必需的。

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Open the command prompt or shell prompt, then set.

打开命令提示符或者Shell提示符，然后按如下进行设置。

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Fairly disappointing earnings from the likes of Royal Dutch Shell and AstraZeneca did little to prompt much enthusiasm in Europe.

NPR: Markets Edgy As US Payrolls Loom

As with any vaccine, the aim is to prompt the immune system to recognise this outer shell and destroy the pathogen before it has time to lock onto cells and infect them with its genetic material.

BBC: Synchrotron yields 'safer' vaccine