Drezil/Bash-Oneliner
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add sed

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Remove lines whose nth character not equal to a value
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onceupon
2018-04-11 10:00:37 +08:00
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parent d21abd8ddc
commit 99b7c30807
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README.md
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@ -194,6 +194,12 @@ sed "/bbo/d" filename
- case insensitive:
sed "/bbo/Id" filename
```
##### Remove lines whose nth character not equal to a value (e.g. 5th character not equal to 2)
```bash
sed -E '/^.{5}[^2]/d'
#aaaa2aaa (you can stay)
#aaaa1aaa (delete!)
```
##### Edit infile (edit and save)