There is a way to do a recursive find and replace of a text pattern inside a file?
Example:
I have 21000 text files (in many subdirectory) that contains a "DOCTYPE" string and I want to substitute in every file that string with another string.
with find I can have a selection of all the files, but how can I modify every text file?
Opus doesn't currently have any features which edit file contents (apart from some viewer plugins that let you edit individual files).
You can do this in a number of text editors, though. I've used TextPad and Visual Studio to do it and I'd bet other good editors like UltraEdit also support it, although I haven't tried them myself.
The people who make TextPad also have a tool called WildEdit which is made specifically for search & replace in multiple files. I'd just do it in TextPad or another editor, though, unless you're going to do a similar change frequently on thousands of files.