Day 5 — Bash Scripting for Automation
Bash scripting is a fundamental skill for automation in Linux environments, widely used by DevOps, cloud, and cybersecurity professionals. It enables efficient execution of tasks like server deployment, backups, and system monitoring through scripted commands. Understanding the Linux shell ecosystem, including shells like Bash and package managers like APT and YUM, is essential before diving into scripting.
- ▪Bash, or Bourne Again SHell, is the default shell for most Linux distributions and serves as a command interpreter for interacting with the operating system.
- ▪Different Linux distributions use different package managers, such as APT for Ubuntu, YUM for CentOS 7, and DNF for Fedora.
- ▪Bash scripts are files containing sequential Linux commands that automate repetitive tasks, improving workflow speed and reducing human error.
- ▪Variables in Bash are created without spaces around the equals sign and are accessed using the $ symbol.
- ▪Conditional statements like if, if-else, and if-elif-else allow decision-making in scripts based on comparisons and conditions.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 1524770) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Rahul Joshi Posted on May 16 Day 5 — Bash Scripting for Automation #masterclassdevsecops #linux #devops #webdev Modern infrastructure runs on automation. Whether you're a: DevOps Engineer Linux Administrator Cloud Engineer Cybersecurity Professional Backend Developer You will eventually write Bash scripts. From automating backups to deploying servers, monitoring systems, managing logs, and running CI/CD pipelines — Bash is everywhere.
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