npm update script(with git bash on windows)

window-npm-update.sh

#!/bin/bash

npm_version=$(npm --version)
npm_path=$(which npm)
npm_dirname=$(dirname $npm_path)
echo current npm version: $npm_version
echo current npm dirpath: $npm_dirname

cd $npm_dirname

test -e npm && mv npm npm-$npm_version
test -e npm.ps1 && mv npm.ps1 npm-$npm_version.ps1
test -e npm.cmd && mv npm.cmd npm-$npm_version.cmd

test -e npx && mv npx npx-$npm_version
test -e npx.ps1 && mv npx.ps1 npx-$npm_version.ps1
test -e npx.cmd && mv npx.cmd npx-$npm_version.cmd

cd node_modules
mv npm npm-$npm_version

cd npm-$npm_version/bin
node npm-cli.js install -g npm@latest