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BASH Snippets.

Identifying and Terminating Processes Using a Specific Port

Quickly resolve 'address already in use' errors by finding which process occupies a given TCP port and how to gracefully or forcefully terminate it using `lsof` and `kill`.

Batch Renaming Files with Prefixes or Suffixes

Efficiently rename multiple files in a directory by adding custom prefixes or suffixes, useful for organizing assets, images, or managing build outputs.

Automating Static Site Deployment to AWS S3

Deploy your static web projects to Amazon S3 buckets efficiently using the AWS CLI within a bash script, including synchronization, cache control, and public-read access.

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.

Configure Essential Security Headers in Nginx

Enhance web application security by configuring critical HTTP security headers like X-Content-Type-Options and Referrer-Policy directly within your Nginx server block.

Automate Git Pull & Status for Multiple Repos

Streamline your workflow by automating `git pull` and checking the status across multiple Git repositories in different directories with a single Bash script.

Sync Files for Deployment with `rsync`

Efficiently synchronize local development files to a remote server for deployment or backup, excluding sensitive files, using `rsync` in a Bash script.

Extract Log Data with `grep` and `awk`

Efficiently filter and extract specific data from large log files (e.g., web server access logs) using a combination of `grep` for pattern matching and `awk` for column-based extraction.