Update README.md

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onceupon 2018-09-06 14:31:16 +08:00 committed by GitHub
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@ -35,7 +35,7 @@ http://onceupon.github.io/Bash-Oneliner/
##### Grep only IP address
```bash
grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}
grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
```
##### Grep string starting with (e.g. 'S')