3 ms·

This may also be because the default grep, i.e. BSD grep actually pays attention to what you have set in your environment variable LANG. Default on OS X is en_U

This may also be because the default grep, i.e. BSD grep actually pays attention to what you have set in your environment variable LANG. Default on OS X is en_US.UTF-8. If the author were to set LANG to c. He would find that BSD grep suddenly speeds up tremendously.

pdw 14y ago
GNU grep certainly honors locale settings, and recent versions are fast even when you're using UTF-8 (since release 2.7 or so).
- X-Istence 14y ago
  Hmm, interesting. Work is being done on BSD grep to make it faster than it is, so hopefully in the near future the two will be on par.