> For the complete documentation index, see [llms.txt](https://ploegert.gitbook.io/til/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ploegert.gitbook.io/til/tools/sed.md).

# sed

- [Apply Multiple Substitutions To The Input](https://ploegert.gitbook.io/til/tools/sed/apply-multiple-substitutions-to-the-input.md)
- [Equivalence Classes Of Repetition MetaChars](https://ploegert.gitbook.io/til/tools/sed/equivalence-classes-of-repetition-metachars.md)
- [Extract Value From Command Output With Sed](https://ploegert.gitbook.io/til/tools/sed/extract-value-from-command-output-with-sed.md)
- [Grab All The Method Names Defined In A Ruby File](https://ploegert.gitbook.io/til/tools/sed/grab-all-the-method-names-defined-in-a-ruby-file.md)
- [Grab The First Line Of A File](https://ploegert.gitbook.io/til/tools/sed/grab-the-first-line-of-a-file.md)
- [OSX sed Does Regex A Bit Different](https://ploegert.gitbook.io/til/tools/sed/osx-sed-does-regex-a-bit-different.md)
- [Output Only Lines Involved In A Substitution](https://ploegert.gitbook.io/til/tools/sed/output-only-lines-involved-in-a-substitution.md)
- [Reference A Capture In The Regex](https://ploegert.gitbook.io/til/tools/sed/reference-a-capture-in-the-regex.md)
- [Use An Alternative Delimiter In A Substitution](https://ploegert.gitbook.io/til/tools/sed/use-an-alternative-delimiter-in-a-substitution.md)


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