MRT: Search/Replace nth occurrence of a char or string.

[PRSchwob]

I have a long list of filenames with <variable length string>-<variable length string>-<variable length string>.ext, and I wish to replace the first "-" with "--" in all these filenames.
Can someone give me a hint on how to replace only the nth (in this case, the first) occurrence of a character (or string)?
Many thanks!

[petermad]

This seems to do it for your example:
Search for:

Code: Select all

(.+?)-(.+)

Replace with:

Code: Select all

$1--$2

[x]RegEx

[PRSchwob]

Brilliant! Many thanks!