Posts (23+)

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August 2026

AI Agent Skills:What They Are and How to Use Them

Hands-on Cursor Agent Skills for beginners — what a skill is, where it lives, how to write a SKILL.md, and how the agent picks it up.

Git

Stay Off Main:Git Branches Without the Fear

Hands-on Git branching — create a feature branch, push it with upstream tracking, merge back into main, and clean up local and remote branches.

Git

When Push Fails:Merge Conflicts, Revert, and Rollback

Hands-on Git for the stuck push — fetch remote changes, resolve merge conflicts, then revert or roll back commits safely.

Spring Boot

Front Door First:API Gateways with Spring Cloud Gateway MVC

When to put an API gateway in front of your services, the trade-offs that matter, and a working Spring Cloud Gateway Server Web MVC example on the Servlet stack.

Git

Git Without the Panic:Init, Commit, Push

Hands-on Git for beginners — init a repo, stage and commit safely, read diffs, and push your first project to a remote.

Linux

Linux Troubleshooting Toolkit:Diagnose Crashes and High Load

Hands-on triage with htop, journalctl, dmesg, and lsof — diagnose high load and crashes by chaining the right tool at each step.

July 2026

Linux

Advanced File Search & Manipulation:find, xargs, and sed

Hands-on batch editing on the command line — find the right files, feed them safely through xargs, and rewrite them with sed.

Linux

Linux rsync:Sync Files Efficiently, Locally and Remote

Hands-on rsync recipes for everyday work — incremental sync, remote backups over SSH, progress output, and safe dry-runs.

Linux

Linux sudo and /etc/sudoers:Manage Privileged Access with Intent

Hands-on sudo and sudoers recipes — run commands as root or another user, edit policy safely with visudo, and delegate fine-grained privileges without handing out full root.

Linux

Linux du and df:Find Disk Space Hogs

Hands-on df and du recipes — check filesystem free space, hunt directory hogs, and resolve “no space left on device” with confidence.