const exec = require("child_process").exec;
exec("ls -la", function (error, stdout, stderr) {
if (error) {
console.log("Error: " + error);
return;
}
if (stderr) {
console.log("stderr: " + stderr);
return;
}
console.log("stdout: " + stdout);
});// Update and Install Node.js
% sudo npm cache clean -f
% sudo npm install -g n
% sudo n stable
// create package.json
% npm init
// create node_modules && ( package-lock.json )
% npm install
// install package
% npm install <package_name>
// install package in devDependencies
% npm install <package_name> --save-dev
% npm install <package_name> -D
// Update packages All
% npm update
// Specify a single package to update
% npm update <package_name>
// Check which packages are installed globally in the system
% npm list -g