On 15/11/10 16:23, Eric Blake wrote: > On 11/15/2010 01:17 AM, 黄东喜 wrote:
>> >> It is different from the sort order of the “join” command. > > Reread 'join --help': > >> Important: FILE1 and FILE2 must be sorted on the join fields. >> E.g., >> use ` sort -k 1b,1 ' if `join' has no options, or use ` join -t '' ' >> if >> `sort' has no options. Note, comparisons honor the rules specified >> by >> `LC_COLLATE'. If the input is not sorted and some lines cannot >> be >> joined, a warning message will be given. > > If you correctly sorted with -k 1b,1 (or if you correctly used join -t > ''), then you will get consistent results for your current locale > (whether or not you also choose to change things to require LC_ALL=C). join -t '' is a recent addition, with join -t '\0' being the old way to achieve the same. I'm marking this done as from the example the poster seems to want: sort -k 1b,1 cheers, Pádraig.
