blocks|key|4346940|text|要升级，请运行：sudo+npm+install+npm@latest+-g|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4346941|npm模块可从https://registry.npmjs.org/npm/-/npm-{版本}.tgz下载。|4346942|entityMap|0|LINK|mutability|MUTABLE|url|https://registry.npmjs.org/npm/-/npm-^0|8|U|0|7|11|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@$9|T|A|U|1|V]]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

To upgrade, run: <code>sudo npm install npm@latest -g</code>

The npm module is available for download at <a href="https://registry.npmjs.org/npm/-/npm-" rel="nofollow noreferrer">https://registry.npmjs.org/npm/-/npm-</a>{VERSION}.tgz.

blocks|key|4347272|text|问题是我在~/.profile中设置了错误的PATH变量。为了帮助您理解，我已将npm前缀更改为~/.npm-global|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4347273|但是，我将path设置为~/npm-global.So，并将~/.profile中的PATH变量改为指向~/.npm-global。|4347274|entityMap^0|5|A|1C|D|0|C|C|1G|D|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|I|$]]

The problem was that I has set the PATH variable in my <code>~/.profile</code> wrong.
To help you understand.I had changed npm prefix to <code>~/.npm-global</code>

However I set path to <code>~/npm-global</code>.So I fixed the PATH variable in my ~/.profile to point to <code>~/.npm-global</code> instead.

blocks|key|4347087|text|我在Ubuntu18.04LTS上使用sudo+su切换到根目录，然后运行以下命令解决了这个问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4347088|curl+-L+https://www.npmjs.com/install.sh+%7C+sh|code-block|syntax|javascript|4347089|entityMap^0|J|7|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

I solved it on Ubuntu 18.04 LTS by switching to root using <code>sudo su</code> then I run the following 

<pre><code>curl -L https://www.npmjs.com/install.sh | sh
</code></pre>

blocks|key|4347378|text|我不得不深入挖掘一点(可能我有一些配置错误)，并采取了一种硬核的方法……首先，我运行which+npm来获取正在运行的脚本，即/usr/local/opt/node@8/bin/npm.js。从这个脚本中，我看到npm包实际上是在/usr/local/opt/node@8/lib/node_modules/npm中。所以我跑了|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4347379|cd+/usr/local/opt/node@8/lib/
npm+i+npm@6.11.2+#+or+your+desired+version
rm+package-lock.json+#+clean+up|code-block|syntax|javascript|4347380|这就成功了，希望它能帮助某些人:)|4347381|注:我并不是说你应该立即这样做，如果你尝试其他方法会更好，但如果其他方法不起作用，那就试一试|4347382|entityMap^0|16|9|1R|W|37|16|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|P|$]]

I had to dig a little bit more (probably I have some misconfig) and take an hardcore approach... 
First I ran <code>which npm</code> to get the script that was running, that was <code>/usr/local/opt/node@8/bin/npm.js</code>. 
From that script I saw that the npm package was actually in <code>/usr/local/opt/node@8/lib/node_modules/npm</code>. 
So I ran 

<pre><code>cd /usr/local/opt/node@8/lib/
npm i npm@6.11.2 # or your desired version
rm package-lock.json # clean up
</code></pre>

And that did the trick, hope it helps someone :)

NB: I'm not saying that you should do this right away, first is better if you try the other approaches but if other approaches are not working give it a shot

blocks|key|4347185|text|在我的例子中(Ubuntu)，唯一能用的就是reboot。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4347186|之后|4347187|npm+install+npm@latest+-g|code-block|syntax|javascript|4347188|的输出|4347189|npm+--version|4347190|未更改(显示旧版本)。|4347191|除非我做了reboot|4347192|entityMap^0|M|6|0|0|0|0|0|0|5|6|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|12|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|U|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|V|$]]

In my case (Ubuntu) the only thing worked was <code>reboot</code>.
After
<pre><code>npm install npm@latest -g
</code></pre>
The output of
<pre><code>npm --version
</code></pre>
was not changed (showing old version).
Unless I did a <code>reboot</code>

I am using npm v5.3.0.
Now I want to update npm to v5.4.1.To do this I type the following in my terminal:

<code>npm install -g npm</code>

without any errors.However when I type <code>npm -v</code> the version I get is the 5.3.0 not the 5.4.1

I have to mention that I have changed the npm prefix to another directory.
Any ideas?
I use Ubuntu 17.04

That's my console output :
<a href="https://i.stack.imgur.com/9Svbx.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9Svbx.png" alt="enter image description here"></a>

npm install npm -g won't update npm to the latest version

我使用的是npm v5.3.0。现在，我想将npm更新到v5.4.1。为此，我在终端中键入以下命令：npm install -g npm如果没有任何errors.However，当我输入npm -v时，我得到的版本是5.3.0，而不是5.4.1我不得不提一下，我已经将npm前缀更改为另一个目录。有什么想法吗？我使用Ub...

问npm install npm -g不会将npm更新到最新版本
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