For Ubuntu 12.04:

sudo apt-get remove nodejs

This will uninstall nodejs as well as npm.

I just checked the link you got this from. You are installing, specifically, version 0.10, or trying to at least, but you have a newer version in the repo that's being installed. You have to follow the setup for node v5.

curl --silent --location https://rpm.nodesource.com/setup_5.x | bash -

PS: for future reference, make sure you read the sites very carefully especially when running commands as root.

EDIT: Alright, it seems that you added the repo correctly. Looking into the repo, your packages are there but the system is looking for the wrong version. At this point, I would suggest.

yum clean all && yum update

That will clean cached repo and grab from remote.

Answer: After the work we've done over the chat, here's the correct answer for you. nodejs v5 installed fine. You previously compiled nodejs v0.12 manually, which is not a good idea on binary distros, because you will end up in this position.

which node

returned

/usr/local/bin/node

while

/usr/bin/node

returned the correct answer of v5.x.

At this point you have multiple options to fix it, but I would recommend 2.

• Option 1: This is the easy way out. You can edit your .bashrc and add an alias that will point node -> /usr/bin/node. This is as simple as adding alias node="/usr/bin/node". This will call the correct version every time but I cannot guarantee that it will not cause conflicts in the future with libraries.
• Option 2: This is the hard way, but it will fix it. First, purge with yum the nodejs that is installed on the system. Second, get the tarball for the version you have compiled, untar it, ./configure and uninstall it. This step, you can find online easily. Finally, reinstall nodejs through yum, and that should fix your problem.

It's impossible to give you specific commands to perform the uninstallation because you don't give us the specific commands that were used to perform the installation. However, based on the information you give, this isn't a difficult task. I recommend that you stop your ongoing efforts — you seem to be doing some very complicated and useless things.

The manually-installed version has the binary in /usr/local/bin. That's good: it means that whoever installed it didn't make a complete mess. Just as a reminder: /bin, /lib, /bin and /usr outside /usr/local belong to the package manager; /usr/local belongs to the system administrator. You have manually-installed software under /usr/local; that's fine.

The binary package of node.js puts files under a common tree, containing:

• Some documentation files in the toplevel directory.
• bin/node and bin/npm
• share/man/man1/node.1
• lib/node_modules
• share/systemtap/tapset/node.stp
• include/node

Since node is in /usr/local/bin, look for the other files and directories under /usr/local as well, e.g. /usr/local/share/man/man1/node.1, etc. If you find them, remove them. If you don't find them, they may have been installed elsewhere, or not at all; you may try locate to find where they are (if they're present: the header files under include and the systemtap file aren't useful to everyone).

It looks like /opt/node-v0.12.7 is the source tree. You can remove that.

If you're worried about removing a file that turns out to be necessary, make sure your backups are up-to-date — or just move the files out of the way or keep a tarball of them while you test that your system still works.

If you're really worried and in a hurry, chances are that the manually-installed version doesn't conflict with the rpm version — there's only that node binary (and probably npm as well) that's ahead of the version in /usr/bin in the PATH. Rename /usr/local/bin/node to /usr/local/bin/node-0.12.7 (and likewise for npm) and node or #!/usr/bin/env node will invoke the system-installed version.

I see. I had both EPEL and NodeSource repositories added. It appears repoquery -R and yum deplist report information regarding only the latest version. In my case it was from NodeSource repository. The following command:

yum deplist --showduplicates nodejs

showed that nodejs from EPEL does depend on npm. Alternativaly, you can run:

repoquery -R --disablerepo=* --enablerepo=epel nodejs

or (not at all convenient, no separation between packages):

repoquery -R --show-duplicates nodejs