Say, I want to get all files in one folder. Since Dir.entries will
have “.” and “…” included. I want to strip them out with “grep”. I
tried to write in such a way as I can did similarly in Perl:
log_files = Dir.entries(log_dir).grep(!/^…?/)
But, it is a syntax error to have “!/regex/” as grep’s argument.
Should I use some trick to make grep accept “not-match” regex?