Install specific Node JS version on Ubuntu

To install specific version of Node JS, first make sure NPM package manager is installed. $ sudo apt-get install npm o $ sudo npm install n -g You can check what is your current Node JS version using below command, $ node -v Also check which all node versions are supported by using below command, $ n ls Changing to specific node version as you want. Now, lets say if you have seen latest node version is 9.4.0 and want to install “6.8.1” version, which is actually a downgrading of Node JS version then you can use below command and pass the version number to “n” command as, $ sudo n 6.8.1 Now, you can see version 6.8.1 is installed, $ node -v

Execution & Command Syntax

$ make sure NPM package manager is installed

$ sudo apt-get install npm o $ sudo npm install n -g You can check what is your current Node JS version using below command, $ node -v Also check which all node versions are supported by using below command, $ n ls Changing to specific node version as you want

$ sudo n 6

Gotchas and Common Issues

• Permission Verification - confirm execution permissions and path variables before invoking system binaries.

• Version Compatibility - check software version release notes for deprecated flags or syntax changes.

• Log Monitoring - inspect system logs (journalctl or /var/log) to troubleshoot execution failures.

Following these steps ensures clean configuration, proper security boundaries, and reliable execution for install specific node js version on ubuntu.