The Ultimate
Snippet Library.

Extracting Hashtags from a String

Learn how to effectively extract all hashtags (words prefixed with #) from any given text string using JavaScript regex, useful for social media apps.

Replacing Multiple Spaces with a Single Space

Clean up user input or text data by replacing sequences of multiple whitespace characters with a single space using Python's `re` module.

Parsing Query Parameters from a URL String

Extract individual query parameters and their values from a URL string using a regex pattern, ideal for client-side routing or data extraction.

Validating and Extracting IPv4 Addresses

Use a robust regular expression in PHP to both validate if a string is a valid IPv4 address and extract it from a larger text.

Formatting US/Canadian Phone Numbers

Standardize phone number inputs into a consistent `(XXX) XXX-XXXX` format using JavaScript regex, enhancing user experience and data consistency.

Automating Daily Directory Backups with Timestamping

Learn to create a robust Bash script for daily directory backups, including timestamping archives and automatically cleaning up old backups to save disk space.

Checking if a TCP Port is Listening for Service Availability

Utilize this Bash snippet to quickly verify if a specific TCP port is actively listening on a host, crucial for checking web server or database service availability and diagnostics.

Automating Website Deployment with Git Pull and Service Restart

Streamline your web deployments with this Bash script that pulls the latest code from Git, updates dependencies, and restarts essential services like Nginx or PHP-FPM.

Analyzing Web Server Logs for Top Requesting IP Addresses

Quickly identify the top IP addresses accessing your web server by parsing Nginx or Apache access logs using `awk`, `sort`, and `uniq` commands for traffic analysis and security.

Conditional Script Execution Based on File or Directory Existence

Enhance script robustness by using Bash conditionals to check for file or directory existence before executing commands, preventing errors and adapting to various project structures.

Authenticating with OAuth 2.0 Client Credentials Grant

Securely access external APIs from your server using the OAuth 2.0 Client Credentials flow for server-to-server authentication, ideal for background services.

Verifying Webhook Signatures with HMAC

Secure your Node.js application's webhooks by verifying incoming request signatures using HMAC, preventing spoofing and ensuring data integrity and authenticity.