Gatsby New Post CLI Script

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This is a small script for creating new posts for markdown generated blogs like Gatsby.

I looked around for a script to use until I decide on which JAMStack CMS I want to implement but every example script I found seemed to have a lot of dependencies.

So I decided to make one myself using core nodejs features.
The script uses readline and fs which are both core nodejs functions.

const fs = require('fs')
const readline = require('readline')

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,

Use readline.createInterface to listen on process.stdin.

const dateNow = new Date()

Use Date() to get current date and time for the blog posts published time.

const blogPostFolder = './content/posts'
const blogPostDate = `${blogPostFolder}/${year}-${month}-${day}`

if (!fs.existsSync(blogPostFolder)) {
  console.log(`ERROR: posts folder not found: ${blogPostFolder}`)

Check the folder specified exists, exit with error if content folder does not exist.

fs.writeFileSync(`${blogPostDate}-${title}.md`, output)

console.log(`Post ${title} was created successfully`)
console.log(`Location: ${blogPostDate}-${title}.md`)

Write to markdown file and give feedback to user with location of new blog post file created.


You can add the script to package.json to run the script using yarn or npm.

  "scripts": {
    "newpost": "node newpost.js"


The full script can be downloaded from github.