Learn how to use Python's match-case statement (structural pattern matching) as a switch-case equivalent. Covers if-elif-else, dictionary lookup, and match-case with examples.

Quick reference for sed stream editor

Learn how to troubleshoot and fix the SSH "Permission denied (publickey)" error. Covers file permissions, key mismatches, SELinux, and SSH agent issues.

This guide explains how to install Python on Ubuntu 24.04 using the deadsnakes PPA or by building from source. Covers Python 3.13, 3.14, and virtual environments.

Quick reference for rsync commands and options