Premium
BASH Snippets.

Sync Local Directory to Remote Server with rsync

Automate efficient and incremental file synchronization from your local machine to a remote web server using rsync over SSH, perfect for deployments.

Filter and Count HTTP Error Codes from Nginx Access Logs

Quickly analyze Nginx access logs to identify and count specific HTTP error codes (e.g., 4xx, 5xx) using `grep`, `awk`, and `sort` for web server monitoring.

Automated MySQL Database Backup with Timestamp

Create a robust bash script to automate daily MySQL database backups, compressing them with a timestamp for easy recovery and storage management.

Monitor and Restart a Systemd Service if Down

Create a bash script to periodically check the status of a critical systemd service (e.g., Nginx, PHP-FPM) and automatically restart it if it's found to be inactive.

Parse Command Line Arguments with getopts for Script Customization

Learn to build robust bash scripts that accept and parse command-line arguments using `getopts`, enabling flexible execution with options and values.

Extracting and Analyzing Web Server Logs

Learn to process web server access logs using `grep` and `awk` to extract common errors, unique IP addresses, and request statistics for debugging.

Check and Restart a Linux Service by Name

Automate checking if a critical Linux service (e.g., Nginx, a Node.js process) is running and restart it if it's found to be inactive, ensuring application uptime.

Define Global Environment Variables and Aliases

Create a Bash script to set up common environment variables and useful command aliases for all new shell sessions, enhancing developer productivity and consistency.

Robust Error Handling and Logging for Bash Scripts

Learn to implement robust error handling, trap signals, and redirect all script output to a log file, ensuring critical operations are reliably monitored and debugged.

Parsing Command Line Arguments in Bash with `getopts`

Learn to efficiently parse short command-line options and their arguments using `getopts` in Bash, making your scripts more flexible and user-friendly.

Check Open Port and Identify Process in Bash

Discover how to use Bash to check if a specific network port is in use and identify the process (PID and name) currently listening on it, useful for debugging port conflicts.

Monitor Disk Usage and Send Email Alerts in Bash

Implement a Bash script to monitor disk space usage on your server and send an email alert when a specified threshold is exceeded, preventing critical storage issues.