DevOps Bash

Cron Jobs with Bash: Scheduled Automation for DevOps

Learn how to run Bash scripts with cron: crontab, five-field schedules, @daily, @reboot, cron logs, PATH issues, and practical database backup and healthcheck examples.

DevOps Bash

Managing Variables and Environment in Bash for DevOps

Learn how to manage variables in Bash: local variables, export, env, set/unset, .env files, getopts, IFS, and common special variables for DevOps scripts.

DevOps Bash

Functions in Bash: Reuse Code Effectively for DevOps

Learn how to write functions in Bash: syntax, parameters, local variables, return codes, sourcing other files, and building a reusable logging library for DevOps scripts.

DevOps Bash

File Handling in Bash: Read, Write, and Manage Files Safely for DevOps

Learn file handling in Bash: cat, head, tail, redirection, here-doc, tee, line-by-line reading, permission checks, find, and xargs. Includes DevOps examples for manual log rotation and config backup.

DevOps Bash

Text Processing in Bash: grep, awk, and sed for DevOps

Learn text processing in Bash with grep, awk, and sed. Includes DevOps examples for filtering Nginx logs, counting unique IPs, and safely updating config files.