# How to rename a batch of files like "01 Hello" to "01 - Hello"?

**URL:** https://community.mp3tag.de/t/how-to-rename-a-batch-of-files-like-01-hello-to-01-hello/43817
**Category:** General Discussion
**Created:** [December 8, 2018, 7:35pm UTC](https://community.mp3tag.de/t/how-to-rename-a-batch-of-files-like-01-hello-to-01-hello/43817 "2018-12-08T19:35:19Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [December 8, 2018, 7:40pm UTC](https://community.mp3tag.de/t/how-to-rename-a-batch-of-files-like-01-hello-to-01-hello/43817/2 "2018-12-08T19:40:39Z")

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Use the function Convert\>Tag-Filename  
Format string: $num(%track%,2) - %title%  
(provided the tag fields are filled)  
Otherwise you should fill the tag fields first.  
E.g.  
function Convert\>Filename-Tag  
Pattern: %track% %title%

There was a similar problem some time back:

> [@Using part of filename as title](https://community.mp3tag.de/t/using-part-of-filename-as-title/5461/10):
>
> Hello! I followed as mentioned above but it didn't work. Maybe I'm doing something wrong. Can you guys help me please? Look the image: [image]

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