On 11/11/2011 09:55 AM, Pádraig Brady wrote: > sort -b -k4.9,4.12 -k4.5b,4.7Mb -k4.2,4.3 -k4.14,4 access_log Whew! That's pretty subtle. Do you observe a significant performance improvement by avoiding -n? I'm asking partly because the manual does it this way:
sort -t ' ' -k 4.9n -k 4.5M -k 4.2n -k 4.14,4.21 I find this a bit easier to explain, but if it's significantly slower we should probably fix the manual.
