Sort command not working properly when using comma as field separator:
File:
cat /tmp/2.csv 66.199.199.221,115645,0 207.233.77.147,120167,0 204.38.48.1,125767,0 83.144.97.50,127944,3 12.174.177.15,134080,0 195.76.177.90,138124,0 50.202.17.163,162618,0 66.64.209.30,163729,0 40.76.63.140,181976,0 207.241.237.163,2226,1854 Observe line 207.241.237.163,2226,1854:
Sorting:
sort -t, -nk 2 /tmp/2.csv 66.199.199.221,115645,0 207.233.77.147,120167,0 204.38.48.1,125767,0 83.144.97.50,127944,3 12.174.177.15,134080,0 195.76.177.90,138124,0 50.202.17.163,162618,0 66.64.209.30,163729,0 40.76.63.140,181976,0 207.241.237.163,2226,1854 But it works fine when using TSV:
sort -nk 2 /tmp/3.tsv 207.241.237.163 2226 1854 66.199.199.221 115645 0 207.233.77.147 120167 0 204.38.48.1 125767 0 83.144.97.50 127944 3 12.174.177.15 134080 0 195.76.177.90 138124 0 50.202.17.163 162618 0 66.64.209.30 163729 0 40.76.63.140 181976 0 Tested with different versions of sort:
sort --version sort (GNU coreutils) 8.21 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by Mike Haertel and Paul Eggert. And :
sort (GNU coreutils) 8.4 Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by Mike Haertel and Paul Eggert. 
