尽管 ~/.bashrc 和 ~/.bash_profile 中都存在“NVM_DIR”变量，但在新的命令行窗口/选项卡中无法识别“nvm”命令

Question

My colleague recently installed Node Version Manager on his Macbook using Homebrew, and ran the two commands suggested at the end of the install script:

export NVM_DIR=~/.nvm
source $(brew --prefix nvm)/nvm.sh

Everything works fine in the terminal window in which the install took place, but if he opens up a new terminal window or even a new tab, he has to install NVM all over again.

My level of command-line experience is relatively low (I don't know what I don't know), so I'm not sure where to start diagnosing the problem. Suggestions are welcome.

Answer 1

The instructions from brew after installing nvm are:

Add the following to $HOME/.bashrc, $HOME/.zshrc, or your shell's equivalent configuration file:

  source $(brew --prefix nvm)/nvm.sh

On OS X with default settings, you actually want $HOME/.profile (or ~/.profile ). Just add the line above to the end of that file.

Running that line once will set up nvm in that shell session. But if you add it to your .profile file, it will be run at the beginning of every shell session.

Answer 2

If you don't want to edit the .bash_profile

You could also export the nvm() function to your current shell enviroment :

source $(brew --prefix nvm)/nvm.sh

to check that is working:

nvm -v

---

If you want to edit the .bash_profile

sudo vim ~/.bash_profile

Type i to insert, and add:

export NVM_DIR="$HOME/.nvm" 
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"

Press wq! to save and exit and finally restart the terminal application.

Never Give Up! ✌️