Cut the number of characters in all documents

[Stas]

Hi!
Please tell me how I can cut the number of characters in all txt documents?
I have thousands of txt documents with different number of characters, but I need to leave for all of them only 500 characters. Thank you!

[Scott Sumner]

@Stas

This sounds like a dangerous operation to me, so be sure you have a backup of all your files before beginning.

You could try a Replace In Files operation:

Find what:
(?s).{500}\K.*

Replace with:
make sure this box is empty

Search mode:
Regular expression

[Stas]

@Scott-Sumner

Thank you very much!

[Scott Sumner]

@Stas

You replied very fast – did you try it? Did it work?

[Stas]

@Scott-Sumner said:

(?s).{500}\K.*

checked, it works!
Thank you