The Ultimate
Snippet Library.

Automating Log Rotation and Compression

A bash script to automate log file rotation, compression, and cleanup of old archives, essential for maintaining server disk space and managing historical data.

Checking Website and API Health Status

A bash script to monitor the HTTP status of multiple web services or API endpoints, providing quick feedback on their availability and response codes.

Finding and Deleting Old Files by Age

A simple yet powerful bash script to locate and safely remove files or directories older than a specified duration, ideal for cleaning up temporary files or old caches.

Timestamped Directory Backup with Rsync

A robust bash script for creating efficient, timestamped backups of important directories using rsync, ensuring data integrity and versioning.

Extracting and Exporting Environment Variables from .env

A bash script to parse a .env file, ignoring comments and empty lines, and export key-value pairs as environment variables for use in shell sessions or scripts.

Flattening a Multidimensional Array Recursively

Discover how to convert a nested, multidimensional PHP array into a single-dimensional flat array using a recursive function.

Filtering an Array by a Custom Condition

Learn how to filter elements from a PHP array using a custom callback function, returning only elements that satisfy a specific condition.

Transforming Array Elements with a Callback

Discover how to apply a transformation to every element in a PHP array using `array_map()`, creating a new array with the modified values.

Custom Sorting an Array of Associative Arrays

Learn how to perform custom sorting on an array of associative arrays or objects in PHP using `usort()` with a user-defined comparison function.

Grouping Items into a Dictionary of Lists using defaultdict

Learn to efficiently group a list of dictionaries or objects by a specific key into a dictionary where values are lists, using Python's `collections.defaultdict` for cleaner code.

Implementing a Simple LRU Cache using collections.OrderedDict

Build a basic Least Recently Used (LRU) cache in Python for efficient data retrieval by leveraging the `collections.OrderedDict` to manage item access order.

Performing Set Operations for Unique Elements and Comparisons

Leverage Python's `set` data structure to efficiently handle unique elements, perform unions, intersections, and differences, and remove duplicates from lists.