Extract public key from PEM Certificate using Node.js

This Node.js script lets you extract the public key from a URL and save it locally to your filesystem. Follow the steps below to use the script:

Prerequisites

Before using the script, kindly ensure that you have Node.js installed on your system. You can download Node.js from the official website.

Download the script:

Download the extractPublicKeyFromURL.js file from this repository and save it to a location on your computer.
Open a Terminal or Command Prompt:

Navigate to the directory where you saved the extractPublicKeyFromURL.js file using the terminal or command prompt.
Generate Public Key:

To run the script and generate the public key, use the following command:
```
node extractPublicKeyFromURL.js <URL> <path/to/public_key.pem>
```
Replace <URL> with the desiered URL without port number, and <path/to/public_key.pem> with the desired output file path for the public key to be extracted.