In case you care:

find . -type f -not -name '*.html' -maxdepth 1 -exec rm '{}';

Does the same job with only one process.

For me, performance doesn't matter that much. I usually deal with 100..2000 files each time and running time isn't much different.

One should measure the total time from the split-second in which your brain decided what you want to do and until you see the next command prompt :)

This is why it's useful to have simple basic blocks (with short names :) that do the job.

In reply to RE: I agree, honest. by fundflow
in thread List non-matching files by fundflow

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