Question

I would like to rename multiple files (add an extension).. i can use zmv of zsh with

autoload zmv
zmv -n '(**/)(*)' '$1$2.myextension'

but this will rename also all the dirs that are inside the current dir… what can i do to rename only files (recursively) and avoid dirs renaming?

Answer 1

From here:

# Rename names of all files under the current Dir to lower case, but keep Dir names as-is. 
  $ zmv -Qv '(**/)(*)(.D)' '$1${(L)2}' 

so I think the (.D) is what you require. The ‘period’ indicates matching on regular files (not directories) and the D enables the GLOB_DOTS option.