Renaming files by reformatting existing filenames - placeholders in replacement strings used with the -replace operator

Question

I have a few video file like this: VideoName_s01e01.mp4 where the season and episodes are variables. I want to add an underscore (\"_\") between the s??

Answer 1

-replace is using regex, not wildcards. Thus you have to change the replace to:

-replace '_s([0-9]{1,2})e([0-9]{1,2})', '_s$1_e$2_'