If you found this post helpful, be sure to subscribe below to get all my future posts (and cheatsheets, example projects, etc. So next time you need to run a npm package from the command line and want a dead simple solution, use npx!
HOW TO USE NPM INSTALL
Npx also lets us install "temporary" (not installed globally) packages if they don't already exist.įor example, if you don't have create-react-app installed but want to test it out, you can do npx create-react-app my-app (passing options just like you would if it was already installed) and npx will install the package then run the command for you. And it's really easy to use - our knex command from above would simply be: npx knex migrate:make migration_name npx lets you run commands from a local node_modules/.bin. If you're using a npm version >= 5.2.0, it comes with a great tool called npx. Imagine this is a locally installed package we're trying to run - from the command line it would be: $ projects/my-db-project/node_modules/knex/cli.js migrate:make migration_nameīut having to type that out for each node module you want to run from the command line? And having to remember all their paths? That's even more annoying than adding to the $PATH variable.
HOW TO USE NPM FULL
If you don't need a package installed globally, why do it?Īnother way is to run the package from the command line by specifying the full path for the module. To publish and install packages to and from the public npm registry or a private npm registry, you must install Node. But this then pollutes your global modules. Downloading and installing Node.js and npm. But sometimes adding more stuff to the PATH can be annoying, and doesn't always play well with relative/absolute paths.Īnd depending on which version of npm or nvm you're using and if you've already made any changes to your $PATH, if you install the package globally, you can then run it from the command line.
One day to do this is to add your node_modules binary folder to your PATH, using something like PATH=$(npm bin).
That's great that you can run the npm package you just installed (knex, in this case) from the command line, but what's usually left out is how you actually go about doing that. Run npm install knex, then run knex migrate:make migration_name Have you ever come across a tutorial with instructions like the following?
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