nodejs cannot be uninstalled

In the process of using Node.js, sometimes you will encounter some problems, such as being unable to install or uninstall Node.js. Among them, the problem of uninstalling Node.js is relatively common. Sometimes even if we take some uninstallation methods, we still cannot completely uninstall Node.js. This article mainly discusses the problem of incomplete uninstallation of Node.js and its solutions.

First of all, why is there incomplete uninstallation? This is because Node.js will create some files and environment variables in different locations of the system during installation. Different versions of Node.js will also have different installation paths and file locations. If you directly use the regular uninstall software When uninstalling, some folders and environment variables may be retained, resulting in incomplete uninstallation.

Next, we list some problems that may be encountered when Node.js is not completely uninstalled and the corresponding solutions.

Question 1: Node.js is uninstalled but the node command still exists

This situation is relatively common. Some users use the node command after uninstalling Node.js. It is still possible to print out version information. This is because when Node.js is installed, it will link the node command to the /usr/local/bin directory or other environment variable paths, so this link will still exist after uninstallation.

Solution:

1. Log in to your terminal
2. Execute the command: echo $PATH, print out your PATH
3. Find the directory containing Node.js in the printed PATH list and delete it
4. Execute the command: hash -r, clear the cache
5. Execute the command : node -v, if command not found is prompted, it means that the node command has been deleted

Question 2: Node.js installed using brew is not cleanly uninstalled

Some users used brew to install Node.js on Mac systems, but when uninstalling, the brew uninstall node command failed to completely uninstall it.

Solution:

1. Enter the terminal
2. Execute the command: brew list, print out a list of all software installed by brew
3. Find the location of the Node.js package and delete it manually
4. Execute the command: echo $PATH, find the directory containing Node.js and delete it
5. Execute command: hash -r, clear cache
6. Execute command: node -v, if command not found is prompted, it means that the node command has been deleted

Question 3: On Windows, node.exe and npm may still exist after uninstalling Node.js

On Windows, after uninstalling Node.js, node.exe and npm may still exist Download some files, such as node.exe and npm, etc.

Solution:

1. Enter Control Panel-> Programs-> Uninstall Program
2. Find Node.js and select "Uninstall"
3. Delete all files in the Node.js installation directory
4. Delete all paths related to Node.js in the environment variables
5. After the previous step is completed, restart the computer
6. Execute the commands: node -v and npm -v. If command not found is prompted, the deletion is successful.

Question 4: On Linux , Node.js installed using apt-get still exists after uninstalling

On Linux, some files and folders may be left behind after uninstalling Node.js installed using apt-get or apt.

Solution:

1. Enter the terminal
2. Execute the command: which node, find the directory where the node is located
3. Delete The directory where node is located
4. Execute the command:echo $PATH, find the directories related to Node.js in PATH, and delete them
5. Execute the command:node -v, if command not found is prompted, it means the deletion is successful

To sum up, there is no general solution for the problem of incomplete uninstallation of Node.js. Different Operating systems and installation methods require different uninstall methods. At the same time, it should be noted that the installation paths and file locations of different versions of Node.js may be different. Therefore, you need to carefully check the installation path and file location of each Node.js before uninstalling. File location to avoid leaving uninstallation residue.

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