$ sudo npm install gulp-sourcemaps
$ sudo npm install -g gulp-sourcemaps

If want to update the gulp-sourcemaps package execute the command as below,

$ sudo npm update gulp-sourcemaps

Update package globally,

$ npm install -g gulp-sourcemaps

Git clone:

$ sudo  git clone https://github.com/rektide/gulp-sourcemaps.git

$ sudo  npm install -g ./gulp-sourcemaps

gulp-sourcemaps@2.6.1 /usr/lib/node_modules/gulp-sourcemaps

How to remove gulp-sourcemaps package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall gulp-sourcemaps

Basic Information of gulp-sourcemaps NPM Package: