sort is awesome!
22 hpp_national:talk:recentAtUsers-64490 23 hpp_national:talk:site_online_users:178494 34 hpp_national:talk:site_online_users:231533 22 hpp_national:talk:praiseTopic-609af190-1dd5-11b2-b06b-a19c5cd49a7a 22 hpp_national:talk:liaoba-2115 16 hpp_national:talk:reprintLiaobaId-5b9dc050-1dd5-11b2-8fd0-81439be9c068 23 hpp_national:talk:praiseTopic-5d247660-1dd5-11b2-8f13-43fc564d8a0a 52 hpp_national:talk:countTopicId-290716 22 hpp_national:talk:visit-254188 52 hpp_national:talk:atMytopic_replied_floor-219652 56 hpp_national:talk:getTopicIdNew-106134 52 hpp_national:talk:atMytopic_replied_floor-294624 34 hpp_national:talk:site_online_users:128886 23 hpp_national:talk:site_online_users:216370 22 hpp_national:talk:visit-214469 3577 hpp_national:talk:countTopicId-133007 23 hpp_national:talk:praiseTopic-5d2ad9e0-1dd5-11b2-a907-1f3d2c4b8d57 23 hpp_national:talk:site_online_users:182704 23 hpp_national:talk:praiseTopic-5ff08430-1dd5-11b2-81e3-ad9b2654a4e0 773 hpp_national:talk:enjoyTopic-234969 ..................
使用空格作为分隔符的一个文本，13万条记录，想要以第一列的值倒序排列：
#-t是分隔符，中间不能有空格 #-k是列，不能有空格， #1nr，表示第1列以number_sort方式reverse倒序排列 sort -t" " -k1,1nr source.txt>dest.txt
13万记录，3妙搞定！！