Zsh Tutorial: sed Substitution, Patterns & Practical Commands #18

Learn sed in Zsh! This lesson covers basic substitution with s/old/new/, global and case-insensitive flags, in-place editing, alternate delimiters, line and pattern addressing, ranges, negation, deleting lines, inserting and appending text, multiple commands, and piping with sed. 🔗 Source code: https://github.com/GoCelesteAI/zsh_text_processing_sed ⏱️ Timestamps: 0:00 — Intro 0:26 — Basic sed Explained 1:06 — Basic sed Demo 3:02 — Patterns & Ranges Explained 3:42 — Patterns & Ranges Demo 5:39 — Practical sed Explained 6:17 — Practical sed Demo 8:23 — Recap 9:05 — End 📋 Topics covered: • Basic substitution: sed 's/old/new/' file • Global replace with g flag • Case-insensitive matching with I flag • In-place file editing with -i • Alternate delimiters (|, #, etc.) • Line number addressing: sed -n '3p' • Line ranges: sed -n '2,4p' • Pattern addressing: sed -n '/regex/p' • Pattern ranges: sed -n '/start/,/end/p' • Negation with !: sed -n '/^#/!p' • Deleting lines with d command • Insert before with i command • Append after with a command • Multiple commands with -e flags • Piping output to sed • Stripping comments and blank lines 🎬 Part of the Zsh Shell Tutorial series — subscribe for weekly lessons!