Sed Change Case: Lowercase, Uppercase & Title Case Examples
Master sed change case: convert text to lowercase, uppercase, or title case with \L and \U modifiers, the portable y command, and safe batch examples.
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Master sed change case: convert text to lowercase, uppercase, or title case with \L and \U modifiers, the portable y command, and safe batch examples.
Master sed insert and append text commands: line numbers, patterns, multi-line blocks, in-place editing on GNU and BSD sed, and the macOS gotchas to avoid.
Master the sed delete line command: remove lines by number, pattern, and range, avoid GNU vs BSD pitfalls, and clean log files safely. Updated 2026 examples.
Master sed search and replace with practical examples: the substitute (s) command, regex patterns, in-place edits, and GNU vs BSD portability tips for 2026.