Fix permissions with an EACCES error when sudo npm install

How fix permissions when use commad $ sudo npm install in Ubuntu and Mac OS X

The official documentation on how to fix npm install permissions with an EACCES error is located at https://docs.npmjs.com/getting-started/fixing-npm-permissions.

I encountered this problem after a fresh install of node using the .pkg installer on OSX. There are some great answers here, but I didn't see a link to npmjs.com yet.

Option 1: Change the permission to npm's default directory

Find the path to npm's directory:
```
npm config get prefix
```

For many systems, this will be /usr/local.

WARNING: If the displayed path is just /usr, switch to Option 2.

Change the owner of npm's directories to the name of the current user (your username!):
```
sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
```
This changes the permissions of the sub-folders used by npm and some other tools (lib/node_modules, bin, and share).

Option 2: Change npm's default directory to another directory

There are times when you do not want to change ownership of the default directory that npm uses (i.e. /usr) as this could cause some problems, for example if you are sharing the system with other users.

Instead, you can configure npm to use a different directory altogether. In our case, this will be a hidden directory in our home folder.

Make a directory for global installations:
```
mkdir ~/.npm-global
```
Configure npm to use the new directory path:
```
npm config set prefix '~/.npm-global'
```
Open or create a ~/.profile file and add this line:
```
export PATH=~/.npm-global/bin:$PATH
```
Back on the command line, update your system variables:
```
source ~/.profile
```

Option 3: Remove Nodejs and Install Nodejs with brew

Option 4: Remove Nodejs and Install Yarn -> haha

Worked for me !!

Thank you, like and share fanpage !!

Jundat95

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Fix permissions with an EACCES error when sudo npm install