# Need a RegEx
**URL:** https://community.mp3tag.de/t/need-a-regex/5508
**Category:** Support
**Created:** [September 28, 2007, 4:43pm UTC](https://community.mp3tag.de/t/need-a-regex/5508 "2007-09-28T16:43:58Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@spikulev](https://community.mp3tag.de/u/spikulev)
#### Post date: [September 28, 2007, 4:43pm UTC](https://community.mp3tag.de/t/need-a-regex/5508/1 "2007-09-28T16:43:58Z")
Please somebody,
I have to process tags in audiobooks, to remove not a certain number of chars in the beginning of the string (this I know), but everything from the beginning of the string to the next full stop and a space after it.
For example:
This is the name of the book. Part 1 (have to remove everything BEFORE letter P in Part 1)
This is shorter. Chapter 1 (have to remove everything BEFORE letter C in Chapter)
Here we see, that the length of the portions I want to remove is different, so the RegEx must not think about number of chars to remove, but think about the first full stop and a space after it.
Thanks.
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [September 28, 2007, 5:22pm UTC](https://community.mp3tag.de/t/need-a-regex/5508/2 "2007-09-28T17:22:27Z")
_Action type:_ **Replace with regular expression**
_Field:_ **TITLE**
_Regular expression:_ **._. (._)**
_Replace matches with:_ **$1**
[] case-sensitive comparison
This should do the trick.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:20pm UTC](https://community.mp3tag.de/t/need-a-regex/5508/3 "2026-02-09T12:20:31Z")