57 lines
816 B
Markdown
57 lines
816 B
Markdown
---
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title: sed
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category: CLI
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layout: 2017/sheet
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intro: |
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Here's some hints on using sed.
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---
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## In place replacements
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### In-place replacement (GNU)
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```bash
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sed -i -e 's/foo/bar/' example.md
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```
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In GNU sed: use `-i` without arg.
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#### In-place replacement (BSD)
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```bash
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sed -i '' -e 's/foo/bar/' example.md
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```
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In OSX, `-i ''` is required.
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## File regions
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{:.-three-column}
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### Print until a certain line is met
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```bash
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sed '/begin api/q'
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```
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### Print until a certain line is met, but not that line
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```bash
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sed '/^# begin/,$d'
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```
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### Print everything after a given line
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```bash
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sed -n '/end api/,$p'
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```
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Print after a given line is found.
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### Print everything except matching
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```bash
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sed -n '/regex/!p'
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```
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Print everything except lines matching regex. Useful for printing files with comments.
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