How do you rename files, removing everything before a certain character, in bridge batch rename?

[martinj54220288]

For example, in this case it's an underscore ( _ )

Original: 

Filename_Filenewname

New: 

Filenewname

I'd like to use the batch rename function in bridge to complete this task. 

thanks 

[gregreser · Accepted solution]

You could use String Substitution and Regular Expression

Find: ^(\w+)(\_)

Replace with:  [leave blank]

Test this on a few copy files.

[martinj54220288]

Thank you for your support, this works fantastic for single words in my batch of files. 

However I have a couple of file names that have spacing and numbers between them. 
i.e.
Orginal: 110File name 1_110New File name 1

New: 110New File name 1

Would it be possible to update the expression to cover these too? 

Thanks again 

[gregreser · Accepted solution]

Try using this:

Find: ^\w+( \w+)*_

Replace with:  [leave blank]

[martinj54220288]

Works great, thanks again