= 2013-12-09 =

== Linux ==

 * <備忘> 怎麼用 Unix Sort 指令根據多個欄位進行排序 - Sorting multiple keys with Unix sort
 * http://stackoverflow.com/questions/357560
{{{
sort -k 3,3 -k 2,2 < inputfile
}}}
{{{
#!text
-k, --key=POS1[,POS2]     start a key at POS1 (origin 1), end it at POS2
                          (default end of line)
}}}