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BASH Snippets.

Processing Log Files and Extracting Data

Learn to efficiently process log files in Bash, using `grep`, `awk`, and `sed` to filter, extract, and transform specific data, invaluable for monitoring and debugging web applications.

Running Commands on Remote Server via SSH

Execute commands on a remote server securely using SSH in Bash scripts, covering passwordless authentication, command execution, and file transfer (scp), crucial for server management.

Automating Website & Database Backups

Create a robust Bash script to automate daily backups of your website files and MySQL/PostgreSQL databases, ensuring data safety and easy recovery.

Basic Git-based Website Deployment

Streamline your web project deployments with a Bash script that pulls the latest code from Git, installs dependencies, and sets file permissions.

Monitor Disk Space and Send Email Alert

Proactively monitor server disk usage with a Bash script. It checks partitions and sends an email alert if usage exceeds a defined threshold, preventing downtime.

Archive and Clean Old Log Files

Maintain server health and free up disk space by automatically archiving and removing old log files, ensuring efficient log management.

Find and Replace Text in Multiple Files

Perform quick and powerful text replacements across numerous files in your project using a single Bash command, ideal for refactoring or bulk updates.

Configure Essential Security HTTP Headers in Nginx

Enhance your web application's security by configuring critical HTTP headers like HSTS, X-Frame-Options, X-Content-Type-Options, and CSP directly in your Nginx server block.

Automating Git Pull and Build on a Server

A bash script to automate pulling the latest code from a Git repository, installing dependencies, and building a web project on a remote server for deployments.

Archive and Rotate Web Server Log Files

A bash script to archive web server log files with a timestamp, compress them, and optionally remove old archives to manage disk space on the server.

Parse JSON Output with JQ

A bash script demonstrating how to parse and extract specific values from a JSON string or file using the powerful command-line JSON processor, 'jq'.

Simple Timestamped File and Directory Backup

A bash script to create timestamped backups of individual files or entire directories, compressing them into `.tar.gz` archives for safe storage.