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BASH Snippets.

Load Environment Variables from .env File in Bash

Learn how to load environment variables from a .env file into your Bash script for dynamic configuration, commonly used in web development projects.

Validate Presence of Essential CLI Tools in Bash

Ensure your Bash scripts have all necessary command-line tools installed (e.g., node, npm, git) before execution, providing robust error handling.

Create Timestamped Directory Backup with Tar

Safely backup your web project directories by creating a timestamped gzipped tar archive, ensuring you have a restore point before major changes.

Robust HTTP Server Health Check with Retries

Implement a Bash script to health-check a web server's HTTP status with retry attempts, crucial for deployment verification and CI/CD pipelines.

Automate NVM Setup and Node Version Switching

Streamline your Node.js development workflow by automating NVM (Node Version Manager) initialization and switching between Node versions in Bash scripts.

Automate Web Server Restart with Status Check

Learn to write a robust bash script for restarting Nginx or Apache, including pre-check for configuration syntax and post-check for service status.

Deploy Project Files Incrementally with rsync

Efficiently deploy web project files to a remote server using rsync, ensuring only changed files are transferred and excluding sensitive directories.

Automate Log File Archiving and Cleanup

Create a bash script to automatically archive and clean up old log files, helping manage disk space and keeping server logs organized.

Backup a Directory to a Timestamped Tar Archive

Automate creating local, timestamped `.tar` archives of important directories. Essential for quick backups of web application files, configuration, or user uploads.

Monitor Server Disk Usage and Alert

Keep an eye on your server's disk space. This Bash script checks partitions' usage and triggers an alert if any exceed a predefined threshold.

Extract Specific Data from JSON Output with jq

Master `jq` to efficiently parse and extract specific data from JSON responses from APIs or command-line tools, making automation simpler.

Managing Project-Specific Environment Variables

Load project-specific environment variables from a .env file into your Bash session or scripts, ensuring consistent configurations across different development environments.