'$'不被识别为内部或外部命令。 [英] '$' is not recognized as an internal or external command.."

问题描述

我已经安装了Node并重新启动了我的电脑，添加了C：\Program Files\\\
odejs\到我的路径，但是当我在命令提示符中运行$ node -version来检查版本时， $'不被识别为内部或外部命令，可操作的程序或批处理文件。

I've installed Node and restarted my computer, added ;C:\Program Files\nodejs\ to my Paths, but when I run $ node -version in the command prompt to check the version it returns "'$' is not recognized as an internal or external command, operable program or batch file.

推荐答案

code> $ 它只是一个提示标记在Unix类型的系统上它是Unix中的传统，在命令行中列出一些命令在命令行 $ 。它表示它是一个shell命令，但是当你键入命令时，你不键入它所以如果你看到：

You don't need the $. It is just a prompt marker on Unix-type systems. It is tradition among the Unix folks when listing in instructions some commands to enter at the command line to precede a command with the $. It signals that it is a shell command, but when you type the command, you don't type it. So if you see:

$ node foo.js

您在命令行提示符下键入节点foo.js ，而不是 $ 。

You type node foo.js at the command line prompt, and not the $.

有时你也可能会看到＃，传统上，这是一个提示符，但这个是与 root user。因此，它将作为用户 root 在Unix类型系统上执行的命令之前。

You might also see # sometimes, which again, traditionally, is a prompt but this one is associated with the root user. So it would precede a command to be executed as the user root on a Unix-type system.

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