Show HN: I wrote a book on GNU grep and ripgrep
Slightly related, I only recently found out that the grep (BSD) included in macOS is way slower than the GNU equivalent that you can install from Homebrew. If you ever had to work with big files and were confused why it's so much slower give it a try.<p><a href="http://jlebar.com/2012/11/28/GNU_grep_is_10x_faster_than_Mac_grep.html" rel="nofollow">http://jlebar.com/2012/11/28/GNU_grep_is_10x_faster_than_Mac...</a>