So much the more reasons to use 

   mmfind ... -xargs  ...

Which, for large number of files, gives you a very much more performant 
and parallelized execution of the classic

  find ... | xargs ...

The difference is exec is run in line with the evaluation of the other 
find conditionals (like -type f) but spawns a new command shell for each 
evaluation of exec...

Whereas -xargs is run after the pathnames of all of the (matching) files 
are discovered ... 
Like classic xargs, if your command can take a list of files, you save 
overhead there
BUT -xargs also runs multiple instances of your command in  multiple 
parallel processes on multiple nodes.

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