Mac OS X uninstall script for packaged install of node.js from https://stackoverflow.com/a/9287292/23056

README.md

To run this, you can try:

curl -ksO https://gist.githubusercontent.com/nicerobot/2697848/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh

uninstall-node.sh

#!/bin/sh
(( ${#} > 0 )) || {
  echo 'DISCLAIMER: USE THIS SCRIPT AT YOUR OWN RISK!'
  echo 'THE AUTHOR TAKES NO RESPONSIBILITY FOR THE RESULTS OF THIS SCRIPT.'
  echo "Disclaimer aside, this worked for the author, for what that's worth."
  echo 'Press Control-C to quit now.'
  read
  echo 'Re-running the script with sudo.'
  echo 'You may be prompted for a password.'
  sudo ${0} sudo
  exit $?
}
# This will need to be executed as an Admin (maybe just use sudo).

for bom in org.nodejs.node.pkg.bom org.nodejs.pkg.bom; do

  receipt=/var/db/receipts/${bom}
  [ -e ${receipt} ] && {
    # Loop through all the files in the bom.
    lsbom -f -l -s -pf ${receipt} \
    | while read i; do
      # Remove each file listed in the bom.
      rm -v /usr/local/${i#/usr/local/}
    done
  }

done

# Remove directories related to node.js.
rm -vrf /usr/local/lib/node \
  /usr/local/lib/node_modules \
  /var/db/receipts/org.nodejs.*

exit 0

It seems that lsbom (now?) outputs paths beginning with ./usr/local/ rather than /usr/local/. Therefore, line 23 needs to be adjusted:

-      rm -v /usr/local/${i#/usr/local/}
+      rm -v /usr/local/${i#./usr/local/}

Indeed, it looks like they changed the output. That's unfortunate.

You can use my forked gist:
https://gist.github.com/ryangatchalian912/75c6894c3f3143fef366d25eb63437ab

Copy and paste these commands into your Terminal:

curl -ksO https://gist.githubusercontent.com/ryangatchalian912/75c6894c3f3143fef366d25eb63437ab/raw/9345866b0f3d0bb0ab1bebbe721a811f15a2adbe/uninstall-node.sh
chmod +x ./uninstall-node.sh
sudo ./uninstall-node.sh
rm uninstall-node.sh

It works on Mac OSX Big Sur (11.4).

after running the script first time i ran node -v command which gave following output:

(base) jaikishansharma@Jaikishans-MacBook-Air ~ % node -v
v16.10.0

and when i ran this script again it gave following output:

(base) jaikishansharma@Jaikishans-MacBook-Air ~ % curl -ksO https://gist.githubusercontent.com/ryangatchalian912/75c6894c3f3143fef366d25eb63437ab/raw/9345866b0f3d0bb0ab1bebbe721a811f15a2adbe/uninstall-node.sh
chmod +x ./uninstall-node.sh
sudo ./uninstall-node.sh
rm uninstall-node.sh
Password:

Node.js not found. Nothing to do.
can anyone explain how node -v still indicate that node.js is still installed on my mac

@jk62 There are multiple ways to install Node.js these days. This script was created to uninstall the MacOS package installer version of Node.js. If you install using brew or nvm or some other package/version manager like that, this script isn't useful. To know whether this script makes sense, try the following to give a clue of how it was installed:

which node