3 Correct answers
If you are referring to the “code” that is typed in once the “use regular expression” checkbox has been ticked:
Regular expression - Wikipedia, the free encyclopedia
Also known as GREP or RegEx for short.
As long as the pattern of your existing filenames is consistent, these should work.
To remove the last _ and the characters after it
To change _+ to -
Click the Preview button to confirm everything is correct, including the file extention, before you run it. Also, select the "Preserve current filename in XMP" option so you can revert back in case there is a problem.
@yuri5 – I like the answer from @gregreser – however, here is another equivalent method for the regular expression find and replace using capture groups:
Find:
(^.+?\+)(.+)(-)(.+)(_\+)(.{2})(.+)(\.[^\.]+$)
Or perhaps "better", Find:
(^.+?\+)(.+)(-)(.+)(_\+)(.+)(_.+)(\.[^\.]+$)
Replace with:
$2_$4-$6$8
27
Replies
Here you go, taken straight from: DesignEasy: How to Remove Sequence Numbers and Empty Spaces When Exporting Layers and Layer Comps
- Run Adobe Bridge and navigate to the folder with exported files.
- Select all files which have sequence numbers.
- Go to Tools > Batch Rename.
- Choose: String Substitution from the first drop-down list in New Filenamessection. From the second drop-down choose: Original Filename. In the Find: text field type: _\d{4}_ (underscore, backslash, letter d, open bracket, number four, closed bracket, underscore). Leave Replace with: text field blank. Ensure that you have Replace All and Use Regular Expression checked as shown on the screenshot below.
- Click on the Preview button in the top right corner and ensure that files will be renamed as you want.
- Click on Rename button and you are done.
In case you are first time doing this and you still have doubts if everything will work as expected, check Copy to other folder option when renaming files. This option is located near the top left corner under: Destination Folder.
Another thing I want to mention is to remove everything that you have below String Substitution options. In case you see additional renaming options just click on minus (-) sign on the right side to remove them.
How to remove/substitute empty spaces in the file name using Adobe Bridge
It is pretty similar process. The only difference is that you should type: \s (backslash followed with letter s) in the Find: text field. You can leave Replace with: text field blank or to type underscore.
Thank you very much! This is what i looked for 
Could i ask you for one more thing? What do those numbers mean? Is it some kind of script language? Thanks
I love this information! I've got a client who always adds a random string of letters and numbers to the end of files but then wants them removed. They always end in _e8 or another set of letter/number. I've tried this code but my guess is it's not working since there are letters? Do you have a suggestion for altering this code to work for this circumstance? Thanks for your help!
@andrewsartistry – As @Lumigraphics wrote, the search pattern that you used does not match your text pattern.
There are many equivalent regex patterns that could be used for your example. Some options include:
Find:
(.+)(_.{2})(\.[^\.]+$)
Replace:
$1$3
or
Find:
_.{2}
Replace:
or
Find:
_\w\d
Replace:
Hello all! virtuaxe do you mind seeing if you can help me with my own issue with this problem?
Before knowing about RegEx + string substitution, I didn't think I'd be able to solve an issue of removing sequence numbers. I've created a thread with my issue here: Sequential reordering error fix?
Basically, I have files exported from Lightroom with sequence numbers appended to the front of the filenames. They used to represent the order of images in a book layout I was doing. When things moved around... I didn't know how to rename all the files at once given they already had sequence numbers in the filenames, and changing even just one file would disrupt everything. I hope that makes sense.
Unfortunately this method doesn't work for me- I've attached a screengrab of my bridge window here. I'm thinking this issue is stemming from the fact that bridge cannot find the original filename in my files, given they were exported from Lightroom and not PS as layer comps.
Your files have 3 leading digits, however the regex that you were using was looking for a fixed value of 4 digits. It also appears that you may have mistakenly added a space and an underscore at the beginning. So, if you add a caret ^ at the start and remove the leading space, leading underscore and change {4} to {3} it should work on all 3 digit strings.
The following code does not care how many number of digits, just as long as the filename starts with 1 or more digits and ends in an _ underscore (offers greater flexibility than hard coding in a specific number of fixed digits).
There are at least two valid approaches (notice the syntax highlighting to help understand what is going on):
Find: ^\d+_
Replace:
(blank, nothing)
Find: (^\d+_)(.+)
Replace: $2
P.S. It is usually a wise move to tick the box “Preserve current filename in XMP metadata” so that it is easy to undo the batch rename if something goes wrong (also use the preview button on the upper right to preview all files, rather than just the single file preview at the foot of the interface).
As long as the pattern of your existing filenames is consistent, these should work.
To remove the last _ and the characters after it
To change _+ to -
Click the Preview button to confirm everything is correct, including the file extention, before you run it. Also, select the "Preserve current filename in XMP" option so you can revert back in case there is a problem.
@yuri5 – I like the answer from @gregreser – however, here is another equivalent method for the regular expression find and replace using capture groups:
Find:
(^.+?\+)(.+)(-)(.+)(_\+)(.{2})(.+)(\.[^\.]+$)
Or perhaps "better", Find:
(^.+?\+)(.+)(-)(.+)(_\+)(.+)(_.+)(\.[^\.]+$)
Replace with:
$2_$4-$6$8
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