文本如下
[root@localhost shell]# cat testfile.txt
northwest NW Charles Main 3.0 .98 3 34
northwest NW Charles Main 3.0 .98 3 34
western WE Sharon Gray 5.3linux常用命令.97 5 23
southwest SW Lewis Dalsass 2.7 .8 2 18
southern SO Suan Chin 5.1 .95 4 15
southeast SE Patricia Hemenway 4.0 .7 4 17
eastern EA TB Savage 4.4 .84 5 20
northeast NE AM Main Jr. 5.1 .94 3 13
northeast NE AM Main Jr.5linux常用命令.1 .94 3 13
north NO Margot Weber 4.5 .89 5 9
north NO Margot Weber 4.5 .89 5 9
central CT Ann Stephens 5.7 .94 5 13
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