# Mass Rename files

**URL:** https://community.mp3tag.de/t/mass-rename-files/7117
**Category:** Support
**Created:** [August 6, 2008, 9:19am UTC](https://community.mp3tag.de/t/mass-rename-files/7117 "2008-08-06T09:19:31Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![rEnEeK](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/r/bb73d2/32.png) [@rEnEeK](https://community.mp3tag.de/u/rEnEeK)
#### Post date: [August 6, 2008, 9:19am UTC](https://community.mp3tag.de/t/mass-rename-files/7117/1 "2008-08-06T09:19:31Z")

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Hi, I am total newbie... I have some tracks.

For example:  
Boriqua Tribez - Sexo (B1 Side)

And I want change it to this: (see screenshot)

How can I change my mp3 files with one action? Thanks

![](https://community.mp3tag.de/uploads/default/original/2X/a/ab7e7523960f9fa06c685f5f45909d3588c69345.JPG)

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### Author: ![DetlevD](https://community.mp3tag.de/user_avatar/community.mp3tag.de/detlevd/32/123_2.png) [@DetlevD](https://community.mp3tag.de/u/DetlevD)
#### Post date: [August 6, 2008, 9:44am UTC](https://community.mp3tag.de/t/mass-rename-files/7117/2 "2008-08-06T09:44:25Z")

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> [@rEnEeK](#):
>
> ... Boriqua Tribez - Sexo (B1 Side)  
> And I want change it to this: (see screenshot)

You may use Converter/Filename - Filename:  
Mask old filename: **%1 - %2**  
Mask new filename: **$upper(%1) - %2**

From: Boriqua Tribez - Sexo (B1 Side).mp3  
To: BORIQUA TRIBEZ - Sexo (B1 Side).mp3

Using action tag format regular expression function:  
**$regexp(%\_filename%,(.+?)( - .+?),\U$1$2)**  
or  
**$regexp(%\_filename%,(.+?) - (.+?),\U$1 - $2)**

DD.20080806.1354.CEST

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### Author: ![rEnEeK](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/r/bb73d2/32.png) [@rEnEeK](https://community.mp3tag.de/u/rEnEeK)
#### Post date: [August 6, 2008, 11:11am UTC](https://community.mp3tag.de/t/mass-rename-files/7117/3 "2008-08-06T11:11:52Z")

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> [@DetlevD](#):
>
> You may use Converter/Filename - Filename:  
> Mask old filename: **%1 - %2**  
> Mask new filename: **$upper(%1) - %2**

It works fine, very thanks 🙂

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### Author: ![rEnEeK](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/r/bb73d2/32.png) [@rEnEeK](https://community.mp3tag.de/u/rEnEeK)
#### Post date: [August 6, 2008, 11:39am UTC](https://community.mp3tag.de/t/mass-rename-files/7117/4 "2008-08-06T11:39:21Z")

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I forgot. I need every first letter in track title with Capitals... so:

ARTIST - some track

change to:

ARTIST - **S** ome **T** rack

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### Author: ![Harakiri](https://community.mp3tag.de/user_avatar/community.mp3tag.de/harakiri/32/142_2.png) [@Harakiri](https://community.mp3tag.de/u/Harakiri)
#### Post date: [September 1, 2008, 6:58pm UTC](https://community.mp3tag.de/t/mass-rename-files/7117/5 "2008-09-01T18:58:10Z")

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Following DetlevDs explanation:

(Converter/Filename - Filename)

Mask old filename: %1 - %2

Mask new filename: %1 - $caps(%2)

You owe me a Guinness! 🙂

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### Author: ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:21pm UTC](https://community.mp3tag.de/t/mass-rename-files/7117/6 "2026-02-09T12:21:04Z")

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