Create npm_eacces_errors.md

npm_eacces_errors.md

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+# Resolving EACCES permissions errors when installing packages globally
+
+1.  Back up your computer.
+2.  On the command line, in your home directory, create a directory for global installations:
+
+    ```
+     mkdir ~/.npm-global
+    ```
+
+3.  Configure npm to use the new directory path:
+
+    ```
+     npm config set prefix '~/.npm-global'
+    ```
+
+4.  In your preferred text editor, open or create a `~/.profile` file and add this line:
+
+    ```
+     export PATH=~/.npm-global/bin:$PATH
+    ```
+
+5.  On the command line, update your system variables:
+
+    ```
+     source ~/.profile
+    ```
+
+6.  To test your new configuration, install a package globally without using `sudo`:
+
+    ```
+     npm install -g jshint
+    ```